Solve [\ (-21)+(-5^ - )\ )*(-4)-20]-3

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3(r+2s)=2t-4

a⋅(b-2)=3b

3(r+2s)=2t-4

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Question

$$[\{(-21)+(-5^{-})\})\times(-4)-20]-3$$

Evaluate

$84f-120$

Solution Steps

Calculate $-5$ to the power of $2$ and get $25$.

$$\left(f\left(-21\right)+25\right)\left(-4\right)-20$$

Use the distributive property to multiply $f\left(-21\right)+25$ by $-4$.

$$-4f\left(-21\right)-100-20$$

Multiply $-4$ and $-21$ to get $84$.

$$84f-100-20$$

Subtract $20$ from $-100$ to get $-120$.

$$84f-120$$

Show Solution

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$84f-120$

Solution Steps

Calculate $-5$ to the power of $2$ and get $25$.

$$\left(f\left(-21\right)+25\right)\left(-4\right)-20$$

Use the distributive property to multiply $f\left(-21\right)+25$ by $-4$.

$$-4f\left(-21\right)-100-20$$

Multiply $-4$ and $-21$ to get $84$.

$$84f-100-20$$

Subtract $20$ from $-100$ to get $-120$.

$$84f-120$$

Show Solution

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Evaluate

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Solution Steps