3x(4x-5)+3 what is the value of x
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Answered by
25
12 x² -15x +3=0
12x²-12x-3x+3=0
12x(x-1) -3(x-1) =0
(x-1) (12x-3)=0
when x-1=0
x = 1
when 12x-3 = 0
x= 3/12
=1/4
give me thanks....
Answered by
0
Step-by-step explanation:
(a)x=3
=3x3(4x3-5)+3
=9(12-5)+3
=9x7+3
=63+3
=66
(b)x=1/2
=3x1/2(4x1/2-5)+3
=3/2(2-5)+3
=3/2x(-3)+3
=(-9/2)+3
=(-9+6)/2
=(-3/2)
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