Algebraic Expression Quiz 10

a(a + 1) = 6 then a = ………

$a^2+b^2+c^2+2ab+2bc+2ca=$ ..........

$196^2 - (194 + 2)^2 =$ ...........

9672 = …………

The area of adjacent square is …

a (a – b) + b (a – b) = ………

$a^2-b^2$ = (a + b) (a – b) is a ……

(x + a) (x – b) = …………

$101^2 - 101^2=$ ............

a = 13, b = 12 then $a^2-b^2$ = …………