Question

factorise y2 + y - 72​

Answer 1

Step-by-step explanation:

y²+y-72

y²+9y-8y-72

y(y+9)-8(y+9)

(y+9)(y-8)

y+9=0 or y-8=0

y= -9 or y= 8

Answer 2

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${y}^{2} + y - 72$

${y}^{2} + 9y - 8y - 72$

$y(y + 9) - 8(y + 9)$

$(y + 9)(y - 8)$

hope it helps you........