5x2-6x-2=0 by the in completing square method
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5*2-6x-2=0
10-2-6x=0
8-6x=0
-6x=0-8
-x=-8/6
x=4/3
10-2-6x=0
8-6x=0
-6x=0-8
-x=-8/6
x=4/3
Answered by
1
Answer:
completing the square method:
Step-by-step explanation:
5x2-6x=2
divide by 5 on both sides.
x2-6/5x=2/5
add coefficient of x * 1/2 whole squared.
x2-6/5x+(3/5)2=2/5+(3/5)2
(x-3/5)2=2/5+9/25
= 14/25
taking square rot on both sides,
x-3/5=+-(root14)/5
x=+-root14/5+3/5
(i).... x=3+root14/5
(ii).... x= 3-root14/5
thnx hope this helps...
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