Question

For what value of t is x = 2/3 a solution of 7x² + tx – 3 = 0​

Answer 1

Answer:

Refer the pics for your answer

Answer 2

Given equation in

7x² + tx − 3 = 0, x=2/3

x=2/3 is the solution of Given equation only if it satisfy the equation.

$7 \times (\frac{2}{3} ) \: + t \times (\frac{2}{3} ) - 3 = 0$

$7 \times (\frac{4}{9} ) + t (\frac{2}{3} ) - 3 = 0$

$\frac{2t}{3} = 3 - \frac{28}{9}$

$t = \frac{ - 1}{6}$

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