Question

find the sum (x+5) and (x-10) using algebraic identity ​

Answer 1

Answer:

(x+5) and (x-10).

It is in the form of {x+a)(x+b)=x²+(a+b)x+ab.

x=x. a=5. b=-10.

(x+5)(x-10)=x²+(5+(-10))x+(5)(-10).

=x²+(5-10)x-50. (Because +×-=-).

=x²+(-5)x-50.

=x²-5x-50.

(or).

x²-5x-50=0.

x²-10x+5x-50=0.

x(x-10)+5(x-10)=0.

(x+5)(x-10)=0.

(or).

x+5=0. x-10=0.

x=-5. x=10.

I think this is your answer.