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Practice — Roots of polynomial equations • Substitutions

Substitutions: check 1
Difficulty: ★★☆
3005
Info
M4U-EXT-QP-9231-FP1-T396-O1

Maths4U Original · Short practice

The roots α,β,γ satisfy \(x^{3} - 37 x^{2} + 454 x - 1848=0\). The transformed roots are \(3\alpha+11,3\beta+11,3\gamma+11\). Write their monic equation as \(y^3+Ay^2+By+C=0\).

Find A.

Enter one number or fraction. Use at least six decimal places when needed; a distribution calculator may be used for probabilities.

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Substitutions: review variant 1
Difficulty: ★★☆
3006
Info
M4U-EXT-QP-9231-FP1-T396-O1-V1

Maths4U Original · Short practice

The roots α,β,γ satisfy \(x^{3} - 40 x^{2} + 531 x - 2340=0\). The transformed roots are \(4\alpha+12,4\beta+12,4\gamma+12\). Write their monic equation as \(y^3+Ay^2+By+C=0\).

Find A.

Enter one number or fraction. Use at least six decimal places when needed; a distribution calculator may be used for probabilities.

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Substitutions: check 2
Difficulty: ★★☆
3007
Info
M4U-EXT-QP-9231-FP1-T396-O2

Maths4U Original · Short practice

The roots α,β,γ satisfy \(x^{3} - 40 x^{2} + 531 x - 2340=0\). The transformed roots are \(4\alpha+12,4\beta+12,4\gamma+12\). Write their monic equation as \(y^3+Ay^2+By+C=0\).

Find B.

Enter one number or fraction. Use at least six decimal places when needed; a distribution calculator may be used for probabilities.

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Substitutions: review variant 2
Difficulty: ★★☆
3008
Info
M4U-EXT-QP-9231-FP1-T396-O2-V1

Maths4U Original · Short practice

The roots α,β,γ satisfy \(x^{3} - 43 x^{2} + 614 x - 2912=0\). The transformed roots are \(2\alpha+13,2\beta+13,2\gamma+13\). Write their monic equation as \(y^3+Ay^2+By+C=0\).

Find B.

Enter one number or fraction. Use at least six decimal places when needed; a distribution calculator may be used for probabilities.

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Substitutions: check 3
Difficulty: ★★☆
3009
Info
M4U-EXT-QP-9231-FP1-T396-O3

Maths4U Original · Short practice

The roots α,β,γ satisfy \(x^{3} - 43 x^{2} + 614 x - 2912=0\). The transformed roots are \(2\alpha+13,2\beta+13,2\gamma+13\). Write their monic equation as \(y^3+Ay^2+By+C=0\).

Find C.

Enter one number or fraction. Use at least six decimal places when needed; a distribution calculator may be used for probabilities.

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Substitutions: review variant 3
Difficulty: ★★☆
3010
Info
M4U-EXT-QP-9231-FP1-T396-O3-V1

Maths4U Original · Short practice

The roots α,β,γ satisfy \(x^{3} - 46 x^{2} + 703 x - 3570=0\). The transformed roots are \(3\alpha+14,3\beta+14,3\gamma+14\). Write their monic equation as \(y^3+Ay^2+By+C=0\).

Find C.

Enter one number or fraction. Use at least six decimal places when needed; a distribution calculator may be used for probabilities.

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Substitutions: check 4
Difficulty: ★★☆
3011
Info
M4U-EXT-QP-9231-FP1-T396-O4

Maths4U Original · Short practice

The roots α,β,γ satisfy \(x^{3} - 46 x^{2} + 703 x - 3570=0\). The transformed roots are \(3\alpha+14,3\beta+14,3\gamma+14\). Write their monic equation as \(y^3+Ay^2+By+C=0\).

Find the sum of the squares of the transformed roots.

Enter one number or fraction. Use at least six decimal places when needed; a distribution calculator may be used for probabilities.

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Substitutions: review variant 4
Difficulty: ★★☆
3012
Info
M4U-EXT-QP-9231-FP1-T396-O4-V1

Maths4U Original · Short practice

The roots α,β,γ satisfy \(x^{3} - 49 x^{2} + 798 x - 4320=0\). The transformed roots are \(4\alpha+15,4\beta+15,4\gamma+15\). Write their monic equation as \(y^3+Ay^2+By+C=0\).

Find the sum of the squares of the transformed roots.

Enter one number or fraction. Use at least six decimal places when needed; a distribution calculator may be used for probabilities.

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