Example answers:
1) -8x + 66
2) -2(5x+10) -2(-3x+8)
Answer: (-3/4)/=-3/4•4/3=-12/12=-1 = = 0
Step-by-step explanation:
Unary minus: -3
4
Multiple: the result of step No. 3 * 4
3
= -3
4
* 4
3
= -3 · 4
4 · 3
= -12
12
= -1 · 12
1 · 12
= -1
Multiply both numerators and denominators. Result fraction keep to lowest possible denominator GCD(-12, 12) = 12.
In words - minus three quarter multiplied by four thirds = minus one.
Compare: (the result of step No. 4) = (-1)
Unary minus: -12
12
= -1
Compare: (the result of step No. 6) = (-1)
Compare: (-1)
Jen's car because if you divide 140 by 5 you get 28 and that's 28 miles per gallon. When you divide 300 by 12 you get 25 and that's 25 miles per gallon.
First we have to combine like terms. 4x² is one term. -8x is another term. -7 is another term. poly = "many" ⇒ polynomial = many terms
(4x² - 8x - 7) + (-5x + 16)
4x² - 8x - 7 - 5x + 16
Combine like terms.
Step 1: 4x² has no other terms with x² so it stays by itself.
Step 2: -8x and -5x are like terms because they both have x.
So -8x -5x = -13x (You put two negatives together)
Step 3: -7 and 16 don't have any x with them. -7 + 16 = 16 - 7 = 9
Now we put all the answers of the steps together.
Step 1: 4x²
Step 2: -13x
Step 3: 9
So the answer is 4x² - 13x +9
And it's a polynomial because there are three terms = "more than one term"
Answer: 242 in²
All the work is shown in the picture.
