(a) Simplify 3x (4x – 5) + 3 and find its values for (i) x = 3 (ii) x=½
Answer:
3x(4x-5)+3
if x=3
3×3(4×3-5)+3
9(12-5)+3
9(7)+3
63+3
66
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Answer:
3x(4x-5)+3
if x=3
3×3(4×3-5)+3
9(12-5)+3
9(7)+3
63+3
66