Additive inverse: In math the additive inverse of "a" is the number when added to "a" should give zero (a) + (-a) = 0
So the sum of a number and its additive inverse is always equal to zero
Step-by-step explanation:
log <base a> b = x
means
a^x = b
So
3^2 = x^2+7x+21
x^2 + 7x + 21 - 9 = 0
x^2 + 7x + 12 = 0
(x+3)(x+4)
x = -3 or -4
Answer:
y = 64
Step-by-step explanation:
Let's solve your equation step-by-step.
√y=8
Solve Square Root.
√y=8
y=82(Square both sides)
y=64
Check answers. (Plug them in to make sure they work.)
y=64(Works in the original equation)
One has 21 and other has 12
