please my question answer...
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(4x-2)^2+6x=25
16x^2-16x+4+6x=25
16x^2-10x +4=25
16x^2-10x+4-25=0
16x^2-10x-21=0
D=b^2-4ac
D=(-10)^2-4(16)(-21)
D=100+1344
D=1444
x=(-b+-√D)/2a
x=(10+-√1444)/2(16)
x=(10+-38)/32
By addition
x=(10+38)/32
x=48/32
x=1.5
By substraction
x=(10-38)/32
x=-28/32=-14/16=-7/8
16x^2-16x+4+6x=25
16x^2-10x +4=25
16x^2-10x+4-25=0
16x^2-10x-21=0
D=b^2-4ac
D=(-10)^2-4(16)(-21)
D=100+1344
D=1444
x=(-b+-√D)/2a
x=(10+-√1444)/2(16)
x=(10+-38)/32
By addition
x=(10+38)/32
x=48/32
x=1.5
By substraction
x=(10-38)/32
x=-28/32=-14/16=-7/8
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