I believe so because in order to solve for x, you don't want it to be a negative number.
<span>4x^2-1 = (2x +1)(2x - 1)
using a^2 - b^2 = (a+b)(a-b)
hope that helps</span>
Answer:
-12
Step-by-step explanation:
Answer:
57-c=5³=72(89^yso)Ох o3 хigle is 180
VXAB=BC,AM=MC
BM IAC , EF I BC(7,6)AB
MA
B
F
с
A1.38371248486w92(iws2937372.28291928373773*^2d)
Step-by-step explanation:
Ох o3 х=5429