Question

X(2•x)= 4•5•y
You get 77 points in you can help me with this!

Answer 1

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Explanation:

x(2•x)= 4•5•y

Expand brackets,

2x•x²=20•y

Multiply.

2x³ = 20y

Divide both sides by 2.

x³ = 10y

Take cube root.

x = ∛10y

2x³ = 20y

Divide 20 on both sides.

1/10x³ = y

Answer 2

`y = \frac{ {x}^(3) }{10}`

Explanation:

`x(2 * x) = 4 * 5 * y \\ 2x * {x}^(2) = 20y \\ 2 {x}^(3) = 20y \\ \frac{ 2{x}^(3) }{20} = (20y)/(20) \\ y = \frac{ {x}^(3) }{10}`