<span>6x^2 + 12x – 7 = 0
Use the quadratic formula:


x = 0.47 and x = -2.47
</span>
Answer:
The biggest common factor number is the GCF number. So the greatest common factor 72 and 80 is 8
Step-by-step explanation:
You multiply -21 by 14 to find x, and that would be -21 x 14 = -294, and that is your answer.
Answer:
b) 16 + 9 + 4 + 1 + 0 + 1 + 4 + 9 + 16 + 25 + 36 + 49 + 64 + 81 + 100 + 121
Step-by-step explanation:

Answer:
<em>m∠ FAE = 20°, m∠ CAD = 60°</em>
Step-by-step explanation:
If you take a look at the picture below, this explanation proves that the measure of FAE ⇒ 20°, and m∠ CAD = 60°;