3 years ago

Twenty minus a number times eight is equal to five more than seven times the same number

Mathematics

1 answer:

Nana76 [90]3 years ago

7 0

I’m not sure though, ok.

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Please help asap! Will give brainliest! Please read the question then answer correctly! No guessing.

crimeas [40]

Answer:

A. x - 4

D. x + 8

Step-by-step explanation:

To find the two binomial that are factors of the trinomial, you split the middle term into two:

$x^2$ + 4x - 32

$x^2$ - 4x + 8x - 32

Group:

( $x^2$ - 4x) (8x - 32)

Take out GCF (Greatest Common Factor):

x(x - 4) 8(x - 4)

(x + 8) (x - 4)

4 0

4 years ago

The quantity y varies as the cube of (x+2) y=32 when x=0. Find y when x=1

Sauron [17]

Answer:

$y \: \alpha \: {(x + 2)}^{3} \\ y = k {(x + 2)}^{3} \\ k \: is \: a \: constant \\ when \: x = 0 \: \: y = 32 : \\ 32 = k {(0 + 2)}^{3} \\ 32 = k(8) \\ k = 4 \\ \therefore \: y = 4 {(x + 2)}^{3} \\ when \: x \: is \: 1 : \\ y = 4 {(1 + 2)}^{3} \\ y = 4 \times 27 \\ y = 108$