Solve for x. 5x^2 – 45 = 0

Mathematics

2 answers:

mamaluj [8]4 years ago

3 0

5x^2-45=0

*Add 45 to both sides*

5x^2=45

*Divide both sides by 5*

x^2=9

*Take the square root of both sides*

x=+/-9

Hope this helps!!

tamaranim1 [39]4 years ago

3 0

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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