SOLUTION: State the number of solutions for the following quadratic system? y^2=x^2-7 x^2+y^2=25
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Question 853884
:
State the number of solutions for the following quadratic system?
y^2=x^2-7
x^2+y^2=25
Answer by
ewatrrr(24785)
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Hi,
y^2=x^2-7
y^2= -x^2 + 25
x^2 - 7 = -x^2 + 25
2x^2 = 32
x^2 = 16
x = ± 4
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