Question

desenvolva as expressões:

a)(x–a)²
b)(x–10)²
c)(3x–1)²
d)(5a–3b)²


calcule
a)(a²–4)²
b)(x²–1)²
c)(–2p+1)²
d)(–3x–1)²


com os cálculos sem ser só as respostas pfvr preciso rápido. pleaseee
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Answer 1

Resposta:

desenvolva as expressões:

a)(x–a)²

x^2 - 2ax + a^2

b)(x–10)²

x^2 - 20x - 20

c)(3x–1)²

9x^2 - 6x - 2

d)(5a–3b)²

25a^2 - 30ab + 9ab^2

calcule:

a)(a²–4)²

2a^4 - 8a^2 + 16

b)(x²–1)²

x^4 - 2x^2 - 2

c)(–2p+1)²

4p^2 - 4p + 1

d)(–3x–1)²

9x^2 + 6x + 1

Explicação passo-a-passo:

Desenvolva as expressões:

a)(x–a)²

(x-a) • (x-a)

x^2 - ax - ax + a^2

x^2 - 2ax + a^2

b)(x–10)²

(x-10) • (x-10)

x^2 - 10x -10x - 20

x^2 - 20x - 20

c)(3x–1)²

(3x - 1) • (3x - 1)

9x^2 - 3x - 3x - 2

9x^2 - 6x - 2

d)(5a–3b)²

(5a–3b) • (5a–3b)

25a^2 - 15ab - 15ab + 9b^2

25a^2 - 30ab + 9ab^2

Calcule:

a)(a²–4)²

(a²–4) • (a²–4)

2a^4 - 4a^2 - 4a^2 + 16

2a^4 - 8a^2 + 16

b)(x²–1)²

(x²–1) • (x²–1)

x^4 - 1x^2 - 1x^2 - 2

x^4 - 2x^2 - 2

c)(–2p+1)²

(–2p+1) • (–2p+1)

4p^2 - 2p - 2p + 1

4p^2 - 4p + 1

d)(–3x–1)²

(–3x–1) • (–3x–1)

9x^2 + 3x + 3x + 1

9x^2 + 6x + 1