(x+b/2a)^2-(b^2-4ac)/2a=0
Step 2:
Re-write the expression:
(x+b/2a)^2=(b^2-4ac)/4a^2
Step 3:
get the square root of both sides:
x+b/2a=sqrt[(b^2-4ac)/4a^2]
Step 4:
Simplifying we get:
x+b/2a=sqrt[b^2-4ac]/2a
Step 5
Make x the subject:
x=-b/2a+/-sqrt[b^2-4ac]/2a
Last one? I’m not sure but that’s what I would put
Answer:
95.40
Step-by-step explanation:
The sales tax is an equivelant to 5.40 dollars :)
I believe is 70 multiply 1400 times 5% and it will give you 70
The answer to the problem is x= -4
