Question

find product using suitable identities:
(x+8)(x-10)​

Answer 1

(x+8)(x-10)=x²-10x+8x-80=x²-2x-80

Answer 2

${\blue{\boxed{\underline{\underline{\mathbb{\red{SOLUTION \: :}}}}}}}$

Using the identity, (x+a)(x+b) = x ²+(a+b)x+ab

[Here, a = 8 and b = −10]

We get,

(x+8)(x−10) = x²+(8+(−10))x+(8×(−10))

= x²+(8−10)x–80

= x²−2x−80

$\large\fcolorbox{red}{lime}{Hope \: this \: helps \: you}$