3 years ago

Multiply. (5x^2-6x+2)(4x^2-3x)

Mathematics

1 answer:

baherus [9]3 years ago

3 0

20x^4-39x^3-16x

Make sure to multiply all the terms by each other in the two parentheses

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3 years ago

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3 years ago

What is the inverse of cube root x/3 +1

Ostrovityanka [42]

Answer:

${f}^{ - 1} (x) = 3 {x}^{2} - 3$

Step-by-step explanation:

We want to find the inverse of

$y = \sqrt[3]{ \frac{x}{3} + 1}$

We interchange x and y to get:

$x= \sqrt[3]{ \frac{y}{3} + 1}$

We solve for y;

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Multiply through by 3

$3 {x}^{2} = y + 3$

Subtract 1 from both sides:

$y = 3 {x}^{2} - 3$

Therefore the inverse is

${f}^{ - 1} (x) = 3 {x}^{2} - 3$

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3 years ago