Question

Produtos notaveis

(X+√2)²
(x/3+1/4)²

Answer 1

(a+b)² = a² + 2ab + b²
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a) (x+√2)² = x² + 2x√2 + (√2)² =
x² + 2x√2 + 2
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b) (x/3 + 1/4)² = (x/3)² + (2x/3)*1/4 + (1/4)² =
x²/9 + 2x/12 + 1/16=
x²/9 + x/6 + 16^-1

Bons estudos ^_^