Answer:
x = 2.857 [rounded]
Step-by-step explanation:
17 x 2 = 34.
Next, we combine.
34 - 14 = 20.
Lastly, we divide 20 by 7.
20 / 7 = 2.857
<em>[The answer </em><em>is</em><em> </em><em>a</em><em> </em><em>decimal</em><em> </em><em>that</em><em> </em><em>doesn't</em><em> </em><em>end</em><em>,</em><em> </em><em>but</em><em> </em><em>I</em><em> </em><em>rounded</em><em> </em><em>it</em><em> </em><em>for</em><em> </em><em>simplicity</em><em>.</em><em>]</em>
Answer:
(2x - 1)(2x + 1)(x - 7)
Step-by-step explanation:
We use grouping to factor.
Step 1: Group 1st 2 terms together and factor
4x³ - 28x²
4x²(x - 7)
Step 2: Group last 2 terms together and factor
-x + 7
-1(x - 7)
Step 3: Combine
(4x² - 1)(x - 7)
Step 4: Factor out quadratic
(2x - 1)(2x + 1)(x - 7)
Answer:
x = -4, y = -6
Step-by-step explanation:
-x+2y = -8
3x-y = -6
x = 2y+8
3(2y+8) - y = -6
6y + 24 -y = -6
5y = -30
y = -6
x = 2(-6)+8 = -12+8 = -4
x = -4, y = -6
Answer:
4
Step-by-step explanation:
