Because you have to go in the order of PEMDAS, parenthesis, exponents, multiplication, division, addition, and subtraction. From what you are saying, 'why you must simplify 3 to the second power first' it seems that you have no parenthesis, so you move onto what is next, which is exponents, in this case, 3 to the power of two.
Answer:
-15x + 39 = -3(5x - 13)
Step-by-step explanation:
a. -3(5x - 13) = -15x + 39
b. -3(5x + 13) = -15x - 39
c. 3(5x - 13) = 15x - 39
d. 3(5x + 13) = 15x + 39
Answer:
Step-by-step explanation:
Factor using Rational Root Theorem.
This means our possible roots are
positve or negative (1,2,3,6). If we try positve 1, it is indeed a root.
This means that
is a root.
We can divide the top equation by the root (x-1). Our new equation is
Now we can factor this completely
So this equation in factored form is
Do 2x6=12×3 since there is 3 packages 2 rows and 6 in each row
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