35.
The difference of squares of two numbers is 204. The square of the
smaller number is 4 less than 10 times the larger number. Find the two
numbers.
other
Answers
Answered by
0
Answer:
20, 14
Step-by-step explanation:
x square - y square = 204
y square = 10x - 4
x square- 10x +4 = 204
x square-10x-200=0
x square-20x +10x -200 = 0
x(x-20) +10(x-20)=0
(x-20(x+10)=0
x = 20 or x=-10
x=20, y=+/- 14
x=-10, y square =-100-4 which is in valid
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