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Solve
2s^3 - 4r^2 if r = 1 and s = 5

just use the numbers!

2*5^3 - 4*1^2 = _____

I honesty have to idea how to do this

its easy the exponents are s^3 and s=5 5^3=5x5x5 witch equals 125

next r^2 r=1 1x1=1 so now you have 2x125-1x4
according to orders of operations you now do multiplication then subtraction so 250-4
then do subtraction.
250-4 = 246 that's the answer do you understand now?

To solve the expression 2s^3 - 4r^2, we substitute the given values of r and s into the expression and then evaluate it.

Let's substitute r = 1 and s = 5 into the expression:

2(5)^3 - 4(1)^2

Now, let's simplify the expression:

2(125) - 4(1)

Multiplying within the parentheses:

250 - 4

Now, subtracting:

246

Therefore, the result is 246.