Question

Check whether the given value of the variable in the following equation are the solution of the equations or not ...
${x}^{2} - 3x - 10 = 0 \\ x = 5and \: x = 2$
How to solve this questions ......​

Answer 1

Answer:

x=5

Step-by-step explanation:

when x=5

put x=5 in the above equation

x^2-3x-10=0

5^2-3×5-10=0

25-15-10=0

10-10=0

0=0

when x=2

x^2-3x-10=0

2^2-3×2-10=0

4-6-10=0

4-16=0

-12=0

so x=5 is the solution of the above equation and x=2 is not the solution of the above equation.

Done!