QuestionMarch 21, 2026

Simplify the expression. 22) (2x^4-4x^3-8x)+(2x+8x^4+8x^3) A) 10x^4+4x^3-6x B) 10x^4+2x^3-6x C) 8x^4+8x^3-6x D) 8x^4+2x^3-6x

Simplify the expression. 22) (2x^4-4x^3-8x)+(2x+8x^4+8x^3) A) 10x^4+4x^3-6x B) 10x^4+2x^3-6x C) 8x^4+8x^3-6x D) 8x^4+2x^3-6x
Simplify the expression.
22) (2x^4-4x^3-8x)+(2x+8x^4+8x^3)
A) 10x^4+4x^3-6x
B) 10x^4+2x^3-6x
C) 8x^4+8x^3-6x
D) 8x^4+2x^3-6x

Solution
4.7(206 votes)

Answer

10x^{4} + 4x^{3} - 6x → **A** Explanation 1. Combine like terms for x^4 (2x^4 + 8x^4) = 10x^4 2. Combine like terms for x^3 (-4x^3 + 8x^3) = 4x^3 3. Combine like terms for x (-8x + 2x) = -6x

Explanation

1. Combine like terms for $x^4$<br /> $(2x^4 + 8x^4) = 10x^4$<br />2. Combine like terms for $x^3$<br /> $(-4x^3 + 8x^3) = 4x^3$<br />3. Combine like terms for $x$<br /> $(-8x + 2x) = -6x$
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