Question

factorise (xsqaure + 21x + 90)​

Answer 1

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Answer 2

Answer:

x^2+21x+90

here we have to make factors

sum=21

product=90

x^2+6x+15x+90

x(x+6)+15(x+6)

(x+6) (x+15)

value of x = -6,-15

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