given:
x² + 12x = 11
perfect square:
a² + 2ab + b²
a² = x² ⇒ x * x
2ab = 12x ⇒ 2(6)x
b² = 6² ⇒ 36
x² + 12x + 36 = 11 + 36
(x+6)(x+6) = 47
Both sides must be added with 36.
Answer:
21 com. 11 com. 15 com. 16 com. 29 prime. 13 prime.
Step-by-step explanation:
Answer:
The answer I believe is -185 1/7
Step-by-step explanation:
I followed PEMDAS.
♥ To solve this you are going to find x. ♥
♥ X in this case is representing a unknown variable, meaning we are not sure of the number x, and to finish the solution to your problem we have to find x.
♥ So to find x the first step is to simplify both sides of the equation.
♥ Starting with distribution:

♥ Now we want to flip the equation.

♥ Our next and almost final step, is to add the number -3 to both sides of our problem. This is going to help us tremendously.

♥ Now our last step before we get our answer is to divide both sides of the problem. In this case we are going to do this:

♥ And then because of that we get our final answer of: -4.
♥
x=-4 <span>♥</span>
7 is 1/10 of 70
is means equal in mathematics
of means multiplication
7 = 1/10 x a
Multiply by 10 on both sides
a = 70