5x2 = 4x +7
solve this equation using completing the square method.........plz fast ..its urgent..
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5x² = 4x + 7
∴[ multiply by "5"]
25x² - 20x - 35 = 0
(5x)² - 2(5x)(2) + 2² - 2² - 35 = 0
(5x - 2)² = 39
5x - 2 = +-√39
5x = +-√39 + 2
x = (√39 + 2)/5
Or,
x = (-√39 + 2)/5
this is the answer according to your question. HOPE IT WAS OF SOME HELP AND IF YES THEN PLEASE FOLLOW AND LEAVE A COMMENT
sanyam3069:
I don't think so that it can be solved using complete square method
sorry..but its wrong..
ok..no problem
sorry
but couldn't help
just check this one if it is correct
pls check
its right answer is ..2+√39/5 , 2- √39 /5
thank you a lot...,☺
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