What is the sum of the 15th square number and the 5th cube number?

if I understood correctly, it should have turned out like this                                    

1.677

step-by-step explanation:

i'm not good at explaining stuff but if you need an answer i'm here for you.

no, the equation would be invalid since they are both not equal.

step-by-step explanation:

here you got

4y-6+4y 2-9

first, you would simplify the equation on the form.

4y-6+4y 2-9

then, move all the terms that contains a y to the left and all the other terms to the right.

+4y-4y+-9-6

finally, you will simplify the left and the right side of the equation.

y=-3