Question
Solve the quadratic equation
Solve by factoring
Solve using the quadratic formula
Solve by completing the square
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r1=0,r2=100
Evaluate
100(1×r)×100=100(1×r)2
Remove the parentheses
100×1×r×100=100(1×r)2
Multiply the terms
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Evaluate
100×1×r×100
Rewrite the expression
100r×100
Multiply the terms
10000r
10000r=100(1×r)2
Any expression multiplied by 1 remains the same
10000r=100r2
Swap the sides
100r2=10000r
Move the expression to the left side
100r2−10000r=0
Factor the expression
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Evaluate
100r2−10000r
Rewrite the expression
100r×r−100r×100
Factor out 100r from the expression
100r(r−100)
100r(r−100)=0
When the product of factors equals 0,at least one factor is 0
r−100=0100r=0
Solve the equation for r
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Evaluate
r−100=0
Move the constant to the right-hand side and change its sign
r=0+100
Removing 0 doesn't change the value,so remove it from the expression
r=100
r=100100r=0
Solve the equation for r
r=100r=0
Solution
r1=0,r2=100
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Rewrite the equation
10000x2+10000y2=x4+2x2y2+y4
Evaluate
100(1×r)×100=100(1×r)2
Evaluate
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Evaluate
100(1×r)×100
Remove the parentheses
100×1×r×100
Rewrite the expression
100r×100
Multiply the terms
10000r
10000r=100(1×r)2
Any expression multiplied by 1 remains the same
10000r=100r2
Rewrite the expression
10000r−100r2=0
Use substitution
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Evaluate
10000r−100r2
To covert the equation to rectangular coordinates using conversion formulas,substitute x2+y2 for r2
10000r−100(x2+y2)
Simplify the expression
10000r−100x2−100y2
10000r−100x2−100y2=0
Simplify the expression
10000r=100x2+100y2
Square both sides of the equation
(10000r)2=(100x2+100y2)2
Evaluate
100002r2=(100x2+100y2)2
To covert the equation to rectangular coordinates using conversion formulas,substitute x2+y2 for r2
100002(x2+y2)=(100x2+100y2)2
Divide both sides of the equation by 10000
10000(x2+y2)=(x2+y2)2
Solution
10000x2+10000y2=x4+2x2y2+y4
Show Solution
