Question

Please help a mate out aye? 80 points!! :D

Simplify the expression 3x(2x – 7).

(A)15x
(B)6x2 – 21
(C)6x2 – 21x
(D)6x – 21

Answer 1

Hey no prob!

We take 3x(2x-7) and we distribute the 3x to both of the terms inside

3x times 2x is 6x^2

and

3x times -7 is -21x

the final answer would be C

6x^2-21x

Answer 2

`\sf \: c) \: 6 {x}^(2) - 21x`

Explanation:

Given expression,

→ 3x(2x - 7)

Simplifying the expression,

→ 3x(2x - 7)

→ 3x(2x) + 3x(-7)

→ (3 × 2)x² + (3 × -7)x

→ (6)x² + (-21)x

→ 6x² - 21x

Hence, option (c) is correct.