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how to solve this pls help

2 Answers

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What have you tried / considered, and where are you stuck?
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distance = velocity \* time  
(10x+7)(x-4) = 10x\^2 +3x -28

a) answer = 10x\^2 +3x - 28

for B; 10x\^2+3x - 28 = 58

thus the fine ANSWER IS

10x\^2 +3x - 86 = 0

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