Question

Evaluate:(x+1) (x+4)​

Answer 1

Answer:

(x+1)(x+4)

Here we have to use the formula

(x+a)(x+b)=x2+x(a+b)+ab

(x+1)(x+4)=x2+x(1+4)+1×4

=x2+x×5+4

=x2+5x+4

The answer is x2+5x+4.

Answer 2

Answer:

I hope you anderstand .......