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Question

Solve 2x2+13x+21=0

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Solution

Consider given equation,


2x2+13x+21=0

2x2+7x+6x+21=0

2x(x+7)+3(x+7)=0

(x+7)(2x+3)=0

When, x+7=0

x=7

When,

2x+3=0

x=32


Hence, this is the answer.

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