Question

srry I postes again​

Answer 1

Step-by-step explanation:

option (c) = 2x²-7x-2=0

Answer 2

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$2 {x}^{2} - 7x + 6 = 0$

Explanation:

To find whether 2 is the solution of equation or not, we will put 2 in the equation.If the solution is 0, 2 is the root of equation, otherwise not.

1.

${x}^{2} - 4x + 5 = {2}^{2} - 4(2) + 5 = 4 - 8 + 5 = 1$

2.

${x}^{2} + 3x - 12 = {2}^{2} + 3(2) - 12 = 4 + 6 - 12 = - 2$

3.

$2 {x}^{2} - 7x + 6 = 2 {(2)}^{2} - 7(2) + 6 = 8 - 14 + 6 = 0$

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