Question

(x^4-7)+(x^4+7)

Answer 1

That's definitely meant to be a plus sign?\[\Large {x^4} - 7 + {x^4} + 7 = 2{x^4}\]

Answer 2

well wat about the 49?

Answer 3

What 49? Did you mean\[\Large ({x^4} - 7) \times ({x^4} + 7)\]

Answer 4

ok i was thinking something else

Answer 5

\[\Large \begin{array}{l}
({x^4} - 7) \times ({x^4} + 7)\\
{x^4} \cdot {x^4} + {x^4} \cdot 7 - 7 \cdot {x^4} - 7 \cdot 7 = {x^8} - 49
\end{array}\]But the question specified addition.

Answer 6

i know i was thinking of a different way but its addition