Answer:
2(3x-2(3x+2)
Step-by-step explanation:
1) 18x^2-8
2) 2(9x^2-4)
3) 2(3x-2)(3x+2)
Answer:
C and G
Step-by-step explanation:
Given
(x - 2)² = - 3x + 6 ← expand left side using FOIL
x² - 4x + 4 = - 3x + 6 ( subtract - 3x + 6 from both sides )
x² - x - 2 = 0 ← in standard form
(x - 2)(x + 1) = 0 ← in factored form
Equate each factor to zero and solve for x
x - 2 = 0 ⇒ x = 2 → G
x + 1 = 0 ⇒ x = - 1 → C
Answer:
3x+4=y
x+y=32
Step-by-step explanation:
x= magazine book price
y=history book price
you need to multiply the price of the magazine by 3 and add 4 to get the price of the history book, 3x+4=y.
You also need to add the price of the magazine and history book to get $32, x+y=$32.
Answer:
x = 42,33°
Step-by-step explanation:
3x + 1° + 52° = 180° [<em>angles</em><em> </em><em>on</em><em> </em><em>a</em><em> </em><em>straight</em><em> </em><em>line</em><em>]</em>
3x + 53° = 180°
3x = 180° - 53°
3x = 127°
<em><u>divide</u></em><em><u> </u></em><em><u>b</u></em><em><u>o</u></em><em><u>t</u></em><em><u>h</u></em><em><u> </u></em><em><u>sides</u></em><em><u> </u></em><em><u>by</u></em><em><u> </u></em><em><u>3</u></em>
x = 42,33°
Answer:
Charles's reasoning is wrong.
Step-by-step explanation:
Lupita has 7 pounds for 16.8 and Charles has 5 pounds for 16.8.
Let's set up ratios.
So Lupita got the best deal, not Charles. Poor him.
