algebra
posted by Sir Galahad .
Solve each equation by factoring.
7x²243=0
I know I'm supposed to add 243 to the other side but don't know what else to do. Divide maybe?
Thanks in advance.
243+7x^2= 0 (reorder)
243+243+7x^2 = 0+243 (add 243 to both sides)
7x^2=243 (Combine like terms)
x^2=34.71428571 (Divide each side by 7/simplify)
34.71428571+x^2=34.71428571 +34.71428571(reorder)
34.71428571+x^2=0.00000000
Answer: The solution to this equation can not be determined.
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