Question

(4x-5) (4x-1) by using identity​

Answer 1

Answer:

x²+(a+b)x+ab identity will be used

Answer 2

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(4x-5)(4x-1)

(x+a)(x+b)=x²+(a+b)x+ab

x=4x;a=-5;b=-1

(4x)²+(-5+(-1))4x+(-5)(-1)

16x²-5-1*4x-5*(-1)

16x²-24x+5