The sum of 2 numbers is 20 and the difference of their squares is 80. Find the numbers. (Step by step solution please)
Answers
Answered by
4
Answer:
(x=√20),(x. = √80)
Step-by-step explanation:
given - so the sum of 2 numbers is 20
x+x=20
x²=20
x=√20
(x=√20)
given- difference of their squares is 80
x²-x²=80
x² = 80
x = √80
(x. = √80)
Answered by
2
Answer:
x + y = 20 (By 1st condition)
x² - y² = 80
(x+y)(x-y) = 80
20(x-y) = 80
x-y = 80/20
x-y = 4
x+y = 20
x-y = 4
2x = 24
x = 12
x+y = 20
12+y = 20
y = 20-12
y = 8
Step-by-step explanation:
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