Answered

what is the formula of perfect square trinomial by factoring?

Sagot :

Sungheeviz
FOIL or CLAM..............

Mlcparra16viz
A perfect square trinomial is shown by either of the two:
(a+b)²= a²+2ab+b²
(a-b)² = a²-2ab+b²

So we just get the square root of the first and last term then we add them or subtract them according to the sign of the second term.