Question

(X+a)(x+b)=x^2+x(a+b)+(ab)

Answer 1

Answer:

Use the identity (x+a)(x+b)=x^2+(a +b)x+ab to find the following products. (i) (x+3 )(x+7) (ii) (4x+5)(4x+1) (iii) (4x+5)(4x+1) (iv) ...

Answer 2

Step-by-step explanation:

(x+a)(x+b)

x*x+x*b+x*a+a*b

x^2+xb+xa+ab

x^2+x(a+b)+ab

Hence prooved.

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