Question

p(x)=xsquare-x-12 on the graph sheet

Answer 1

p(x) = 0 = x2 - x - 12

:. 0 = x2 - 4x + 3x -12

0 = x(x-4) + 3(x-4)

0 = (x-4) (x+3)

0 = x - 4 0= x +3

x = 4 x = -3

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And : x = 4 or -3

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Hope this helps....