Given f(x) = 2x²+3a, find f(-5)
To find f(-5), we need to substitute -5 for x in the function f(x).
f(-5) = 2(-5)² + 3a
Simplifying,
f(-5) = 2(25) + 3a
f(-5) = 50 + 3a
Therefore, f(-5) = 50 + 3a.
u need to square first
Apologies for the oversight. Let's correct the calculation.
To find f(-5), we need to substitute -5 for x in the function f(x).
f(-5) = 2(-5)² + 3a
Simplifying,
f(-5) = 2(25) + 3a
f(-5) = 50 + 3a
Therefore, f(-5) = 50 + 3a.
To find f(-5), we need to substitute -5 into the expression for f(x) and evaluate the result.
First, let's substitute -5 for x in the expression for f(x):
f(-5) = 2(-5)² + 3a
Next, let's simplify the expression by squaring -5 and multiplying:
f(-5) = 2 * 25 + 3a
Now, multiply 2 by 25:
f(-5) = 50 + 3a
Thus, the value of f(-5) is 50 + 3a.