Question

Simplify the expressions and find their values if x = 3, a = - 1, b = -2
i. 2 - 8x + 42 + 4

Answer 1

Answer: 22

Explanation:

after substituting the value of x:

2 - 8×3 + 42+ 4;

2-24+42+4;

2-24+44;

2+20

22

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