Answer:
(x - 5)(x + 3)
Step-by-step explanation:
to solve x² - 2x = 15, we need to get all the terms on one side so we can solve the quadratic equation using factoring. to do this, we subtract 15 from both sides
x² - 2x = 15
- 15 -15
x² - 2x - 15 = 0
now we can factor. we need 2 numbers that when multiplied together give us -15, and when those 2 numbers are added together we get -2
because we have a -15, we can assume that one number must be negative and the other positive, as a negative times a postive is a negative.
we can use 3 and -5 as factors and test it out. we put x in front because we have an x²
(x - 5)(x + 3) < we can FOIL to check to see if this is correct. its not mandatory to check but when you arent sure of the answer you can FOIL it out
FOIL stands for: First, Outside, Inside, and Last terms
F: (x - 5)(x + 3) = x²
O: (x - 5)(x + 3) = -3x
I: (x - 5)(x + 3) = 5x
L: (x - 5)(x + 3) = -15
x² + 3x - 5x - 15 < subtract 3x from 5x
x² - 2x - 15
this checks out, so our answer is (x - 5)(x + 3)
Answer: I think its B or C bc if you subtract them on the 180 you will get the same answer and by just adding them back again.
Step-by-step explanation:
Complete the statement to describe the expression ab+cd+ef+ghab+cd+ef+gha, b, plus, c, d, plus, e, f, plus, g, h. The expression
solmaris [256]
Answer:
The expression contains FOUR terms and each term contains TWO factors.
Step-by-step explanation:
In algebra, the word term refers to single numbers(10), variables<em>(</em><em>y</em><em>)</em> also the product of the two(<em>10y</em>).
In the given expression : <em>ab+cd+ef+gh .</em>
We have four terms;
A factor is part of a product. For the given equation we Four terms each term will have two factors.
- <em>ab</em>- is a product of factor a and b
- <em>cd- </em>is a product of factor<em> c </em>and<em> d</em>
- <em>ef-</em>is a product of factor<em> e </em>and<em> f</em>
- <em>gh-</em>is a product of factor<em> g </em>and<em> h </em>
Answer:
48 + 8x = 9
Step-by-step explanation:
4 +
x = 
multiply through by 12 ( the LCM of 3 and 4 ) to clear the fractions
48 + 8x = 9
Okay so you have 10/12 marbles (ten out of twelve). Both 10 and 12 can be divided by 2, right? So divide both of those by 2 and you get 5/6. That’s your answer. Hope this helps!