Question

AYUDAAAAAAAAAAAAAAA:c​

Answer 1

Explicación paso a paso:

a) -4.(2x-1) +18 = 6 -2 (-5+x)

-8x+ 4 +18 = 6 +10 -2x

-8x +22 = 16 - 2x

-8x +2x = 16 -22

-6x = -6

x = 1

b) 4 .(x-1) +10 = 2(x+7)

4x -4 +10 = 2x + 14

4x + 6 = 2x +14

4x -2x = 14 - 6

2x = 8

x= 4

c)

$2 {}^{3} = - \frac{1}{4} x {}^{2} + 5 \times 2 {}^{2} \\ 8 = - \frac{1}{4} x {}^{2} + 5 \times 4 \\ 8 = - \frac{1}{4} x {}^{2} + 20 \\ 32 = - x {}^{2} + 80 \\ x {}^{2} = 48 \\ x = 4 \sqrt{3}$

espero te halla ayudado <3

Answer 2

a) $-4 × (2x - 1) + 18 = 6 - 2×(-5+x)$

• $-8x + 4 + 18 = 6 + 10 - 2x$

• $4 + 18 = 6 + 10 - 2x + 8x$

• $22 - 16 = 6x$

• $8 = 6x$

• $\frac{8}{6} = x$

• $\boxed{\frac{4}{3} = x }$

b) $4×(x-1) + 10 = 2×(x+7)$

• $4x - 4 + 10 = 2x + 14$

• $4x - 2x = 14 - 6$

• $2x = 8$

• $x = \frac{8}{2}$

• $\boxed{x = 4}$

c) $\frac{{2}^{13}}{{2}^{10}} = \frac{{x}^{2}}{-4} + 5×{(-2)}^{2}$

• ${2}^{13-10} = \frac{ {x}^{2}}{-4} + 5×4$

• ${2}^{3} = \frac{{x}^{2}}{-4} + 20$

• $(-4)×8 = {x}^{2} + (-4)(20)$

• $-32 = {x}^{2} - 80$

• $80 - 32 = {x}^{2}$

• $48 = {x}^{2}$

• $\boxed{\sqrt{48} = x}$