14. If 3x + 4y = 16 and xy = 4; find the value
9x2 + 16y2.
15. The number x is 2 more than the number y. If
the sum of the squares of x and y is 34; find
the product of x and y.
Given : x - y = 2 and x2 + y2 = 34
To find the value of xy.
16. The difference between two positive numbers
is 5 and the sum of their squares is 73. Find
the product of these numbers.
Algernon:
can anyone answer this please
Answers
Answered by
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the answer for the 15th sum is 15
yep got it! thanks a lot
I think 14th answer is 256
(3x)^2 + (4x)^2 = (16)^2
we have answers behind the textbook .... it's showing 160 as the answer
9x^2 + 16y^2 = 256
ya! tha sm
thanks a bunch
is there any way that you can send the working of the sum? 14 th one
256 is the right answer???
idk I'm getting 160
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