Answer:
C = -D - B
Step-by-step explanation:
Step 1: Write out equation
B + C = -D
Step 2: Subtract B on both sides
C = -D - B
Step-by-step explanation:
4x^2 - 20 = 5
4x^2 -25 = 0
4x^2 = 25
2x = 5, or -5
x = 5/2 , or -5/2
The answer is 771/100 or 7 and 71/100
You divide by 1 but to do that, you must move the decimal so that there are only whole numbers, but if you move the decimal, then you have to do the same for 1 but you move it to the right instead of the left=771./100.
