Answer: SECOND OPTION
Step-by-step explanation:
Given the following equation:
[tex]x^2-36=5x[/tex]
You can follow these steps in order to find the values of "x" that makes the equation true:
1. Subtract [tex]5x[/tex] from both sides of the equation:
[tex]x^2-36-5x=5x-5x\\\\x^2-5x-36=0[/tex]
2. Factor the equation. Find two numbers whose sum be -5 and whose product be -36. These are 4 and -9:
[tex](x+4)(x-9)=0[/tex]
Then you get:
[tex]x_1=-4\\\\x_2=9[/tex]
Checking:
[tex](-4)^2-36=5(-4)\\\\-20=-20[/tex]
TRUE
[tex](9)^2-36=5(9)\\\\45=45[/tex]
TRUE
Answer:
Its B. -4 and 9
Step-by-step explanation:
Just took it and got 100%
