Answer:
Step-by-step explanation:
(a - b)(a + b) =a² - b²
(3x + 5)(3x -5) =(3x)² - 5² = 9x² - 25
(x +2)(x+2) = (x+ 2)² = x²+ 2*2*x+2² = x² + 4x + 4
(x+2)(3x -5 ) = x*3x - 5*x +2*3x +2*(-5)
= 3x² -5x +6x -10
= 3x² + x - 10
13x² - 20x - 45 = 3*(3x² + x - 10)
13x² - 20x - 45 =9x² + 3x - 30
13x² - 9x² -20x - 3x - 45 + 30 = 0
4x² - 23x - 15 = 0
Answer:
B
Step-by-step explanation:
If the numerator is one, the denominator is going to be the same value as a normal positve interger.
Answer:
y=mx+b is 32x53 divide by 10 and =8.31=b+423.1/74=mx=647.bd-5634=y add them up and is your answer.
Step-by-step explanation:
Answer: <em>$3.83 per package</em>
Step-by-step explanation:
<em>Simply you need to use division</em>
<em>Divide 11.49 by 3</em>
<em>11.49/3</em>
<em>To which you will get</em>
<em>$3.83</em>
Answer: Each pen cost $0.75
Step-by-step explanation:
If A LaDawn buys a pack of 10 gel pens and the total cost is $7.50 then you divide 7.50 by 10.
