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NOW IT'S YOUR TURN
QUESTION NO. 4 (B)
PLEASE ANSWER FAST
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Step-by-step explanation:
3x(4x-5)+3
= 12x^2-15x+3 ( after simplification)
i) x = 3 , substitute3 in place of x
= 12(3^2) -15(3)+3
= 108-45+3
= 66
ii) x = 1/2 , substitute 1/2 in place of x
= 12(1/2^2)-15(1/2)+3
= 3-7.5+3
=-1.5
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