Everyone should do this derivation, because otherwise the "quadratic formula" is some sort of "magic" LOL...
ax^2+bx+c=0
x^2+bx/a+c/a=0
x^2+bx/a=-c/a
x^2+bx/a+b^2x/(4a^2)=b^2/(4a^2)-c/a
(x+b/(2a))^2=(b^2-4ac)/(4a^2)
x+b/(2a)=±√(b^2-4ac)/(2a)
x=-b/(2a)±√(b^2-4ac)/(2a)
x=(-b±√b^2-4ac)/(2a)
Answer:
32
Step-by-step explanation:
you have to divide 224 by 7
Answer:
4 I'm guessing
Step-by-step explanation:
If I am right plzzz mark me as brainiest and if I am wrong the don't
Whats the question suposed to say
0.90309
this is the answer in decimal form but you can covert it