passpadi

2009

Mathematics

JAMB

Solve 5(2(x-1)) × 5(x+1)=0.04

A.

1/3

B.

1/4

C.

-1/5

D.

-1/3

Correct Answer: -1/3

Explanation

5(2(x-1)) × 5(x+1) = 0.04 5(2(x-1)) × 5(x+1) =5−2 2x − 2 + x + 1 = −2 3x − 1 = −2 ⟹ 3x = −2 + 1 = −1 x =−1/3

5(2(x-1)) × 5(x+1) = 0.04 5(2(x-1)) × 5(x+1) =5−2 2x − 2 + x + 1 = −2 3x − 1 = −2 ⟹ 3x = −2 + 1 = −1 x =−1/3
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