<span>Solving for variable 'p'.
Move all terms containing p to the left, all other terms to the right.
Add '-2p' to each side of the equation.
-12 + -6p + -2p = 12 + 2p + -2p
Combine like terms: -6p + -2p = -8p
-12 + -8p = 12 + 2p + -2p
Combine like terms: 2p + -2p = 0
-12 + -8p = 12 + 0
-12 + -8p = 12
Add '12' to each side of the equation.
-12 + 12 + -8p = 12 + 12
Combine like terms: -12 + 12 = 0
0 + -8p = 12 + 12
-8p = 12 + 12
Combine like terms: 12 + 12 = 24
-8p = 24
Divide each side by '-8'.
p = -3
Simplifying
p = -3
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Answer and explanation
You add all of the digits together a see if it is divisible by 3 sooooo...........
5+3+6+1=15/3=5
I'm assuming the given function is f(x) = 15x^2 + 10x.
If so, then,
f(x) = 15x^2 + 10x
f(x) = 15*(x)^2 + 10*(x)
f(-1) = 15*(-1)^2 + 10*(-1) ... note how x is replaced with -1
f(-1) = 15*(1) + 10*(-1)
f(-1) = 15 - 10
f(-1) = 5
Therefore the answer is 5
