Given the quadratic equation:
Using the general solution for quadratic equations:
From the problem, we identify:
Then:
And the solution set is:
![\lbrack\frac{-5-3\sqrt{5}}{2},\frac{-5+3\sqrt{5}}{2}]](https://tex.z-dn.net/?f=%5Clbrack%5Cfrac%7B-5-3%5Csqrt%7B5%7D%7D%7B2%7D%2C%5Cfrac%7B-5%2B3%5Csqrt%7B5%7D%7D%7B2%7D%5D)
Answer:
8/20 + 5/20 = 13/20
Step-by-step explanation: You would have to multiply the numerator and denominator of 2/5 by 4 to get 8/20 and multiply the numerator and denominator of 1/4 by 5 to get 5/20, equaling to 13/20.
Step-by-step explanation:
it's late but I hope it helps :)
imagine that the > symbol is just an equal sign
so for example
x+2>4
will look like
x+2=4
and you solve normally
×=2
now we bring the symbol back
x>2
but if you multiple or divide by a negative the sign flips
so say you have
-2x>4
make it into
-2x=4
solve
x=-2
but instead of >
you put
x < -2
3(9) = 27
3(7) = 21
3(9+7) = 48
27+21 = 48
48=48
