Answers

2015-06-30T20:35:29+08:00
4x²-20x =11
x²-5x = 11/4 --> all the terms are divided by the value of x²
x²-5x+25/4 = 11/4 + 25/4
x²-5x+25/4= 36/4
( x-5/2 ) = ( 36/4 )
√( x-5/2 ) = plus or minus sign √(36/4 )
x - 5/2 = plus or minus sign 6/2
x = 5/2 plus or minus sign 6/2
x sub 1 = 5+6/2
s sub 2 = 5-6/2
x sub 1 now is = 11/2 ---> final answer
x sub 2 now = -1/2 ---> final answer

sorry ndi ko nagawa no. 2 ang haba masyado. hahaha
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