There are two numbers such that sum of the numbers is 22 and the difference of their squares is 44. Find their difference.
2 answers:
You might be interested in
Hi there! The answer is A.
In the graph we can see is a parabola (so B. cannot be the answer) with a vertex at the point (0, 0), which means the parabola is not translated upwards or downwards. Therefore, only A. can be correct, since all the other formulas include a translation downwards (which can be deduced from the -2 in the formula).
In the graph we can see is a parabola (so B. cannot be the answer) with a vertex at the point (0, 0), which means the parabola is not translated upwards or downwards. Therefore, only A. can be correct, since all the other formulas include a translation downwards (which can be deduced from the -2 in the formula).
Here,
- x+y=1212••••••
- x-y=518••••••
ADDITIONALL,both two equation.
we get that,
- x+y+x-y=1212+518
- 2x=1730
- x=865
so,
- x-y=518
- 865-y=518
- y=860-518
- y=347