The factoring can be done similarly to a quadratic equation thanks to x^4 being the square value of x^2.
<span>x^4 + 6x^2 - 7
x^4</span><span> - x^2</span> + 7x^2 - 7
(x^4 - x^2) + (<span>7x^2 - 7)
</span>x^2(x^2 - 1) + 7(<span>x^2 - 1)
</span>(x^2 + 7)(x^2 - 1)
<span>(x^2 + 7)(x - 1)(x + 1)
</span>
Factored completely we get: <span>(x^2 + 7)(x - 1)(x + 1)</span>
Answer:
Step-by-step explanation:
2.)A=
=75.
3.) years to month
6 years is 72 month+2 month=74 month
month to days
74 month=2250.84days.
I think the answer to this problem is b.
Answer:
r > -4
x < 4
Step-by-step explanation:
-8r < 32
r > -4
8x < 32
x < 4
Answer:
12 sides
Step-by-step explanation:
