Sagot :
(a+b)²=a²+2ab+b²
(x+y)²=x²+2xy+y²
(x+4)²=x²+8x+16
Square the first and last term (first and third term)
and multiply both terms and 2 (middle term)
(x+y)²=x²+2xy+y²
(x+4)²=x²+8x+16
Square the first and last term (first and third term)
and multiply both terms and 2 (middle term)
1. A^2 + 2ab + b^2
2. x^2 + 2xy + y^2
3. x^2 + 8x + 16
( "^" stands for Exponents.)
2. x^2 + 2xy + y^2
3. x^2 + 8x + 16
( "^" stands for Exponents.)