Question

Alguien me podria ayudar en serio se los agradezco mucho

Answer 1

Explicación paso a paso:

Formula de binomio al  cuadrado:

(a ± b)² = a² ± 2ab + b²

Resolvamos:

1.

(3x-6)² = (3x)² - 2(3x)(6) + (6)²

(3x-6)² = 9x²-36x+36

2.

(-5x+y)² = (-5x)² + 2(-5x)(y) + (y)²

(-5x+y)² = 25x²-10xy+y²

3.

(-x³-5)² = (-x³)² - 2(-x³)(5) + (5)²

(-x³-5)² = x⁶+10x³+25

4.

(4/3x-9/7)² = (4/3x)² - 2(4/3x)(9/7) + (9/7)²

(4/3x-9/7)² = 16/9x²-72/21x+81/49

(4/3x-9/7)² = 16/9x²-24/7x+81/49

Formula de binomio al cubo:  

(a ± b)³ = a³ ± 3a²b + 3ab² ± b³

Resolvamos:

5.

(3+4x)³ = (3)³ + 3(3)²(4x) + 3(3)(4x)² + (4x)³

(3+4x)³ = 27+108x+144x²+64x³

6.

(2y-1)³ = (2y)³ - 3(2y)²(1) + 3(2y)(1)² - (1)³

(2y-1)³ = 8y³-12y²+6y-1