Question

Simplify the expression: (6x + 7x + 5x³) - (4x4 - 2x³ + 3x)?

A. 10x4 +7x³ + 18x
B. 2x + 7x³ + 4x
C. 2x4 +7x³ + 18x
D. 10x + 3x³ + 12x​

Answer 1

NOA

Explanation:

Let's simplify the given expression step by step:

(6x + 7x + 5x³) - (4x⁴ - 2x³ + 3x)

= 18x³ - 4x⁴ - 2x³ + 6x + 7x - 3x (Group like terms)

= -4x⁴ + 16x³ + 10x (Combine like terms)

Therefore, the simplified expression is:

-4x⁴ + 16x³ + 10x, which can also be written as 2x(5x³ - 2x² - 2x) - 4x⁴.

So the answer is not one of the options provided.

Answer 2

None of the above

Explanation:

(6x + 7x + 5x³) - (4x⁴ - 2x³ + 3x)

6x + 7x + 5x³ - 4x⁴ + 2x³ - 3x

10x + 7x³ - 4x⁴

or

- 4x⁴ + 7x³ + 10x