Answer:
<h3>x = -3 , x = 3</h3>
Step-by-step explanation:
7x² - 3 = 60
7x² - 3 - 60 = 0
7x² - 63 = 0
Simplify the terms
Divide both terms by 7
That's
x² - 9 = 0
Solve the quadratic equation
Use difference of two squares
That's
a² - b² = ( a + b)(a - b)
x² - 9 = 0
(x + 3)(x - 3) = 0
x + 3 = 0 x - 3 = 0
x = - 3 x = 3
Hope this helps you
Step-by-step explanation:
It is multiplication property of equality. The goal is to get d by itself so what we do here is basically a process of
![5d=75\\\\5d/5=75/5\\\\d=15](https://tex.z-dn.net/?f=5d%3D75%5C%5C%5C%5C5d%2F5%3D75%2F5%5C%5C%5C%5Cd%3D15)
Answer:
19%
Step-by-step explanation:
Answer:
true
Step-by-step explanation:
each x-value have exactly only one y-value