Question

Simplify 3x(4x-5)+3 and find its value for (i) x=10 (ii) x =1/6

Answer 1

Step-by-step explanation:

I)

$3x(4x - 5) + 3 \\ = 3 \times 10 \times 4 \times 10 - 5 \times 3 \times 10 + 3 \\ = 1200 - 150 + 3 \\ = 1053$

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