Question

5) Solve by splitting the middle term for the equation x2 - 2x -63 = 0, such that the equation has two equal roots
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Answer 1

= x^2-2x-63

= x^2+7x-9x-63

= x(x+7) -9(x+7)

= (x+7) & (x-9) is the answer

note:-

1) x^2 means (x square)

2) 7 X (-9) = 63

3) 7 - 9 = (-2)