Solve for x. 5x^2 – 45 = 0
2 answers:
5x^2-45=0
<em>*Add 45 to both sides*</em>
5x^2=45
<em>*Divide both sides by 5*</em>
x^2=9
<em>*Take the square root of both sides*</em>
x=+/-9
Hope this helps!!
Answer:
+-3
Step-by-step explanation:
1. Add 45 to each side: 5x^2=45
2. Divide 5 on each side: x^2=9
3. Square root both sides: x= +-3
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