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Kari Kari Dec 14, 2020

Which of the following has 2 as a root ?1. x^2 -4x+5=02. x^2+3x -12 = 03. 2x^2-7x+6=04. 3x^2-6x-2=0please Decideme please please please please please​

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Answer:

3. 2x^2-7x+6=0

it will have 2 as root

substitute 2 in the equation

2x²-7x+6=0

2(2)²-7×2+6=0

2×4-14+6=0

8-8=0

0=0

As LHS = RHS

2 is the root of the given equation

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KatrineLu KatrineLu
Dec 14, 2020
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