Question
How do you solve using the completing the square method #5x^2 - 7x + 2 = 0#?
How do you solve using the completing the square method #5x^2 - 7x + 2 = 0#?
Answers
#x = (7 +- 3)/10# Explanation:
#5x^2 - 7x = -2# . Divide both sides by 5
#x^2 - (7x)/5 = -2/5#
#x^2 - (7x)/5 + 49/100 = - 2/5 + 49/100#
#(x - 7/10)^2 = 9/100#
#(x - 7/10) = +- 3/10#
#x = 7/10 +- 3/10 = (7 +- 3)/10#
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