Answer:
a : 6
b : 240
c : 166.7 or 166.666666667
Step-by-step explanation:
Hope this helps!
Answer:
Step-by-step explanation:
- (x+y-z)²= 4xy
- (x+y-z)²- 4xy = 0
- (x+y-z)²-(2√x√y)² = 0
- (x+y-z-2√x√y)(x+y-z+2√x√y) =0
- [(√x-√y)²-z]*[(√x+√y)²-z]=0
- (√x-√y)²-z = 0 or (√x+√y)²-z = 0
We have : z^(1/2)= x^(1/2)+y^(1/2) ⇒ √z = √x + √y ⇒ z = (√x + √y)²
so (x+y-z)²= 4xy
Answer:
Q1-298
Q2-422
Step-by-step explanation:
a+b+c=-1
a=1
b=-1
c=-1
So for this u just replace the letters
not sure about x+y=7
