Question

What is the value of x if f(x)=23. f(x)=x^2-7

Answer 1

value of x is: $x=\pm\sqrt{30}$

Step-by-step explanation:

We are given f(x)=23 and f(x)=x^2-7. We need to find the value of x.

So, $f(x)=x^2-7\\ 23=x^2-7\\x^2=23+7\\x^2=30\\Taking\,\, square\,\, root\,\, on\,\, both\,\, sides\,\,\\x=\pm\sqrt{30}$

So, value of x is: $x=\pm\sqrt{30}$

Keywords: Find value of x

Learn more about finding value of x at:

brainly.com/question/5147732

brainly.com/question/1616605

brainly.com/question/1626495

#learnwithBrainly