Question

differentiate X to the power 8 + x to the power 7

Answer 1

$\frac{d}{dx} {x}^{8} + {x}^{7 } \\ \frac{d}{dx} {x}^{8} + {x}^{7} \\ 8 {x}^{7} + 7 {x}$
this is your solution cause
d/dx x^n = nx^n-1

Hope it helps!!!