FACTORISE (x2+x)2+4(x2+x)-12
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Answered by
38
let x²+x=t
then t²+4t-12=t²+2(2)t+4-4-12=(t+2)²-16
put the value ot t
(x²+x+2)²-4²=(x²+x+2+2)(x²+x+2-2)=(x²+x+4)(x²+x)
then t²+4t-12=t²+2(2)t+4-4-12=(t+2)²-16
put the value ot t
(x²+x+2)²-4²=(x²+x+2+2)(x²+x+2-2)=(x²+x+4)(x²+x)
Answered by
1
Answer:
(x^2+x-2)(x^2+x+6) is the a nswer
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