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Question 3 - B

Question 5 - A

Step-by-step explanation:

Question 3

-2(x+6)(x-1)  - answer B

Expand the brackets

(x+6)(x-1) = x² - x + 6x - 6

Simplify = x² + 5x - 6

Now multiply this by -2

-2(x² + 5x - 6) = -2x² + 10x + 12

Question 5

5(x² + 8)(x² - 8) - answer A

First expand brackets.

(x² + 8)(x² - 8) = x⁴ - 8x² + 8x² - 64

8x² cancels out to x⁴ - 64

Now multiply this by 5

5(x⁴ - 64) = 5x⁴ - 320

Hope this has helped. These are the answers I can help with.

part a

in a city ice cream is mostly only bought when the temperature is very high as ice cream cools down our

so we can derive the conclusion that as the temperature increases the number of ice creams sold also increases

part b

y intercept is 5

slope is 2

happy to

pls mark as brainliest

idk

step-by-step explanation: