Just factor to find the roots
<span>6x² - 6x - 72 = 0 </span>
<span>6(x² - x - 12) = 0 </span>
<span>6(x - 4)(x + 3) = 0 </span>
<span>B: x - 4</span>
Discriminant =
b² - 4ac
3² - 4(2)(- 9)
9 + 72
81
Your equation has two real solutions.
2x² + 3x - 9 = 0
2x² + 6x - 3x - 9 = 0
2x(x + 3) - 3(x + 3) = 0
(2x - 3)(x + 3) = 0
Set each equal to zero:
2x - 3 = 0
2x = 3
x = 3/2
x + 3 = 0
x = - 3
Your two solutions are x = - 3, 3/2
Answer:
solve for g
-2(5+6g) = -10 +-12g =0
-12g=10
g=10/-12 = -5/6
Step-by-step explanation:
Answer:
<em>68 degrees</em>
Step-by-step explanation
If <3 and <4 are vertical angles, then <3 = <4
This means that
9x + 5 = 5x + 33
9x - 5x = 33 - 5
4x = 28
x = 28/4
x = 7
Since <4 = 5x+ 33
<4 = 5(7) + 33
<4 = 35 + 33
<4 = 68 degrees
<em>Hence the measure of <4 is 68 degrees</em>
Answer:
yes its 14 crishmas tree.