Question

x^2 +x -72 factorise in copy
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Answer 1

Step-by-step explanation:

x^2+x-72

x^2+9x-8x-72

x(x+9)-8(x+9)

(x+9)(x-8)

x=-9,x=8

Answer 2

Step-by-step explanation:

it can factories as

x^2+9x-8x-72=0

x(x+9)-8(x+9)=0

x=8 or x=-9