Question

(x square -5) ( x+ 5) = 25. simplyfy​

Answer 1

Answer:

hyy plz mark brillent

Step-by-step explanation:

Using solution to quadratic formula is the long way to the answer because you already have the equation in standard form. Just solve directly.

%285x%2B1%29%5E2=-13

5x%2B1=%28%2B-sqrt%28-13%29%29

5x=%28-1%2B-sqrt%28-13%29%29

highlight%28x=%28-1%2B-sqrt%28-13%29%29%2F5%29

While your steps are a little difficult to follow, you seemed to simply not simplify at the end; otherwise, good.

Answer 2

Step-by-step explanation:

$({x}^{2} - 5)(x + 5) = 25 \\ {x}^{3} + 5 {x}^{2} -5x - 25 = 25 \\ {x}^{3} + 5x {}^{2} - 5x = 25 + 25 \\ {x}^{3} + 5 {x}^{2} - 5x = 50$

I hope it helps you