How do you simplify # -(8-k)+8k(4k-7)#?

Answer 1

#32k^2-55k-8#

The brackets must be distributed as the first step.

#rArr-(8-k)+8k(4k-7)#
#=color(blue)(-8)color(red)(+k) color(magenta)(+32k^2)color(red)(-56k)#

assembling similar terms.

#color(magenta)(32k^2)color(red)(+k-56k)color(blue)(-8)#
#=32k^2-55k-8#
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Answer 2

To simplify -(8-k)+8k(4k-7), you can distribute the 8k across the terms within the parentheses and then combine like terms. This results in -8 + k + 32k^2 - 56k. Combining like terms yields 32k^2 - 55k - 8. So, the simplified expression is 32k^2 - 55k - 8.

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Answer from HIX Tutor

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.

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