Question

(5 + 8x 4- 6x 2 ) + (x 4- x 2- 7) simplified

Answer 1

Answer: 22x−2

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Answer 2

Answer:

$\left(9x^{4}-7x^{2}-2\right)$

Step-by-step explanation:

$\left(5+8x^{4}-6x^{2}\right)+(x^{4}-x^{2}-7)$      Combine like terms by looking at the exponents.

$\left(9x^{4}-7x^{2}-2\right)$

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