simplyfy the following and find its value for x=1/2 3x (4x-5)+3
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answer:1.25
Step-by-step explanation:
x=1/2
3x(4x-5)+3
=3(1/2)[4(1/2)-5]+3
=3×1/2[4×(1/2)-5]+3
=7/2[9/2-5]+3
=3.5[4.5-5]+3
=3.5[-0.5]+3
=[3.5×-0.5]+3
= -1.75+3
=1.25
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