Answer:
X=±8
Step-by-step explanation:
x²=64
x²=8²
X=±✓8²
X=±8
area = 2x² + 7x - 4
the area (A ) of a rectangle = length × width
A = (2x - 1 )(x + 4 ) ← expand using FOIL
= 2x² + 8x - x - 4 = 2x² + 7x - 4
Answer:
-64
Step-by-step explanation:
Answer:
It is 121
Step-by-step explanation:
Answer:
6/15 + 5/15 = 11/15
Step-by-step explanation:
cross multiply the numbers to get a common denominators, then add