if X + Y is equal to 12 and X Y is equal to 14 find the value of x square + Y square
Answers
Answered by
3
Answer:
130
Step-by-step explanation:
x+y=12
x²+y² can be written as (x+y)²- 2xy
(x+y)²=144
2xy=14
(x+y)²- 2xy=144-14
=130
therefore,
x²+y²=130
hope it helped:)
Answered by
3
Answer:
Step-by-step explanation: x+y = 12
xy = 14
x²+y² = ( x+y )² - 2xy
= (12)² - 2× 14
= 144 - 28
= 116 (ans)
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