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4 years ago

Simplify the expression -4x^2(3x-7)

Mathematics

1 answer:

Olegator [25]4 years ago

8 0

Distribute -4x^2 to the numbers in parentheses.

-4x^2(3x - 7)

-4x^2 * 3x - 4x^2 * (-7) = -12x^3 + 28x^2

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Answer:

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Now

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Step-by-step explanation:

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3 years ago

Dillon studied 3 6/7 hours for his English test. He studied 5 3/14 hours for his math test. How much longer did he study for his

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Step-by-step explanation:

How much longer did he study for his math test?

$E=3\frac{6}{7}$

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$x=difference$

An equation for this would resemble this:

$M- E=x$

Now before we get into any equation solving let's get the denominators equal to each other. we can do this by multiplying the numerator and denominator by 2. $\frac{6(2)}{7(2)}=\frac{12}{14}$

Now we can solve the equation:

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