3 years ago

Simplify (x2 16)(x2-16)? A. x4- 256 B. x256 C. x432 D. x4-32

Mathematics

1 answer:

tiny-mole [99]3 years ago

7 0

(x² + 16)(x² - 16)
= (x²)² - 16²
= x⁴ - 256

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Find the mean proportion between 1/2 nd 1/8

Delicious77 [7]

Answer:

It is C or 1/4

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3 years ago

Gavyn and Alex win some money and share it in the ratio 4:1. Gavyn gets £18 more than Alex. How much did they get altogether?

densk [106]

Answer:

£30

Step-by-step explanation:

Gavyn has £18 more than Alex

—› G - A = £18

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1u = £18 ÷ 3

= £6

total units = 4 + 1 = 5

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3 years ago

Solve for c.<br><br> 3 − 7c − 20c = 7(–7c − 19) + 14c<br><br> c =

OleMash [197]

Answer:

$\boxed{c = -17}$

Step-by-step explanation:

$= > 3 - 7c - 20c = 7( - 7c - 19) + 14c \\ \\ = > 3 - 27c = ( - 7c \times 7) - (7 \times 19) + 14c \\ \\ = > 3 - 27c = - 49c - 133 + 14c \\ \\ = > 3 - 27c = - 35c - 133 \\ \\ = > 3 - 27c + 35c = - 133 \\ \\ = > 3 + 8c = - 133 \\ \\ = > 8c = - 133 - 3 \\ \\ = > 8c = - 136 \\ \\ = > c = - \frac{136}{8} \\ \\ = > c = - 17$