Solving Quadratic Equations (Edexcel A-Level Mathematics): Quizzes

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Solving Quadratic Equations
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11 questions from this quiz

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To factor x2−6x−16x^2 - 6x - 16, which two numbers multiply to −16-16 and add to −6-6?

22 and −8-8

What is the factored form of x2−6x−16x^2 - 6x - 16?

(x+2)(x−8)(x + 2)(x - 8)

To factor 4x2+8x+34x^2 + 8x + 3, what should you multiply together first?

44 and 33

For 4x2+8x+34x^2 + 8x + 3, which pair multiplies to 1212 and adds to 88?

66 and 22

What is the factored form of 4x2+8x+34x^2 + 8x + 3?

(2x+3)(2x+1)(2x + 3)(2x + 1)

For 6p2+5p−16p^2 + 5p - 1, which pair multiplies to −6-6 and adds to 55?

(6,−1)(6, -1)

For 8x2+19x+68x^2 + 19x + 6, what product do you find first?

4848

What is the factored form of 6p2+5p−16p^2 + 5p - 1?

(p+1)(6p−1)(p + 1)(6p - 1)

To solve 6+23x−4x2=06 + 23x - 4x^2 = 0, how should it be rewritten?

−4x2+23x+6=0-4x^2 + 23x + 6 = 0

If (4x−1)(x−6)=0(4x - 1)(x - 6) = 0, what are the solutions?

x=−1/4x = -1/4 or x=6x = 6

Why solve quadratics manually instead of always using a calculator?

You earn method marks

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