dle" class="latex-formula">
1 answer:
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
You might be interested in
Thou hund ten one
5 , 0 0 0
Point A altimeter reading: +450
Point B altimeter reading: -50
Answer:
0.0008032
Step-by-step explanation:
Hope this helps!
Answer:
ITSZ OKAYYY CALMM DOMWW
Step-by-step explanation:
