3) –
Check - 6,8 are the solutions of f(x)
= x ² + 14x +48 or not.
Answers
Answer:
Hey, there!!!
Step-by-step explanation:
Plug in the two given solutions in place of x one by one and then proceed with solving the equation. If the given solutions are correct then by solving you will get a zero(0) at the end otherwise the given solutions are wrong.
STEP 1: For x=-6
f(x)=f(-6)= -6^2+(14*-6)+48
On solving we get,
f(x=-6) = 36+(-84)+48
f(x)= 84-84
f(x)=0
Thus -6 is a solution of f(x)= x ² + 14x +48
STEP 2: For x=8
f(x)=f(8)= 8^2+(14*8)+48
On solving we get,
f(x=8) = 64+(112)+48
f(x)= 112+112
f(x)= 224
Thus 8 is not a solution of f(x)= x ² + 14x +48
I THINK IT MUST BE GIVEN ( -8 ) IN THE QUESTION. KINDLY RECHECK IT. If it is -8 in the question then on solving you will indeed get a zero at the end, which means that -8 is a solution for the given polynomial.
Hope this helps.
Don't forget to like and mark my answer as brainliest!!!