Answered

Get reliable answers to your questions at Westonci.ca, where our knowledgeable community is always ready to help. Connect with a community of experts ready to help you find solutions to your questions quickly and accurately. Get immediate and reliable solutions to your questions from a community of experienced professionals on our platform.

If f (x) = x^2 -2x -11, then which of the following values of x solves f(x)=4?

Sagot :

gmany

Answer:

[tex]\huge\boxed{x=-3\ \vee\ x=5}[/tex]

Step-by-step explanation:

[tex]f(x)=x^2-2x-11\\\\f(x)=4\\\\x^2-2x-11=4\qquad|\text{subtract 4 from both sides}\\\\x^2-2x-15=0\\\\x^2+3x-5x-15=0\\\\x(x+3)-5(x+3)=0\\\\(x+3)(x-5)=0\iff x+3=0\ \vee\ x-5=0\\\\\boxed{x=-3\ \vee\ x=5}[/tex]

Thank you for your visit. We are dedicated to helping you find the information you need, whenever you need it. We hope this was helpful. Please come back whenever you need more information or answers to your queries. Westonci.ca is your go-to source for reliable answers. Return soon for more expert insights.