Answer:
± 42.25
Step-by-step explanation:
±6.5^2 = ±42.25
Answer:
square roots fall under exponets
Step-by-step explanation:
I hope this helps you
1.x^2-8x-3=0
disctirminant =(-8)^2-4.1. (-3)
disctirminant =64+12
disctirminant =76
x1,2= -b(+,-)square root of disctirminant /2a
x1=-(-8)+square root of 76/2.1
x1=8+square root of 76/2
x2=8-square root of 76/2
You answer it with simple math
