Question

prove the Identity-
Identity IV : (x + a) (x + b) = x + (a + b)x +ab​

Answer 1

Answer:

Step-by-step explanation:

(x+a)(x+b)

= x^2 + ax + bx + ab (expanding)

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

Hence proved

Answer 2

Step-by-step explanation:

To prove = (x+a) (x+b) =x²+(a+b)x+ab

Proof:-

L. H. S

=(x+a) (x+b)

=x²+xb+ax+ab

=x²+(b+a)x+ab

=x²+(a+b)x+ab

L. H. S=R.H.S

hence proved

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