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

answers: 1

The time for answering the question is over

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

332

KatrineLu

Dec 14, 2020

For answers need to register.

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​