Question

a²-b²= 19 find the value of a​

Answer 1

Answer:

$a {}^{2} - b {}^{2} = 19 \\ (a + b)(a - b) = 19$

Answer 2

Answer:

A= 10

Step-by-step explanation:

we know that

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

I will write it 91*1

so both equation compere

then solve