Question

calcule o quadrado da soma

a)
$(x + 4) {}^{2}$
b)
$(10x + 6) {}^{2}$
c)
$(a + b) {}^{2}$
d)
$(a {}^{2} + b {}^{2} ) {}^{2}$
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Answer 1

Explicação passo-a-passo:

a)

(x + 4)²=(x)²+2.(x).(4)+(4)²

(x+4)²= x²+8x +16

b)

(10x + 6)²=(10x)²+2.(10x).(6)+(6)²

(10x+6)²= 100x²+120x + 36

c)

(a + b)²=(a)²+2.(a.b)+(b)²

(a+b)²= a²+2ab+b²

d)

(a²+ b²)²=(a²)²+2.(a²).(b²)+(b²)²

(a²+b²)²= a⁴ +2a²b² +b⁴