Question

Solve the quadratic equation by factorisation method:

x
^2 + x – 20 = 0​

Answer 1

Answer:

x=-5, x=4

Step-by-step explanation:

x(+5)-4(x+5)

(x+5) (x-4) =0

x+5=0,x-4=0

x=-5,x=4

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Answer 2

Answer:

Ur answer:

${x}^{2} + x - 20 = 0 \\ = > {x}^{2} - 5x + 4x - 20 =0 \\ = > x(x - 5) + 4(x - 5) \\ = > (x + 4)(x - 5)$

Step-by-step explanation:

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