Question

If a= -3 , b= 5,then find the value of (a+b) (a-b)?​

Answer 1

Step-by-step explanation:

(a+b)(a-b)=a^2-b^2

so, (-3)^2-(5)^2=9-25=-16

hope this helps you better

Answer 2

$\tt \red{Answer:-}$

Given:-

a= -3

b= 5

$\tt{(a + b)(a - b)}$

$= \tt{( - 3 + 5)( - 3 - 5)}$

$= \tt{ 2 \times ( - 8)}$

$= \tt \red{ - 16}$