Find two consecutive positive even integers, the sum of whose squares is 340.
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1
Answer:
12 and 14
Step-by-step explanation:
x^2+(x+2)^2=340
Solve the equations and add
x^2+x^2+4x+4=340
2x^2+4x+4=340
divide both sides by 2
x^2+2x+2=170
Subtract 170 both sides
x^2+2x-168=0
factor
(x-12)(x+14)=0
set both equations to zero
x-12=0
add 12
x=12
x+14=0
minus 14
x=-14
b
We only want postive numbers so,
x=12
12+2=14
Answer 12, 14
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