4 years ago

If x+y = 12 and x−y = 8, what is the value of x2+y2? (A) 20 (B) 24 (C) 100 (D) 104 (E) 208

Mathematics

1 answer:

SSSSS [86.1K]4 years ago

4 0

Answer:

Step-by-step explanation:

x-y=8

x=8+y

(8+y) +y =12

2y=4

y=2

x+2=12

x=10

y=2

x=10

10+2= 12

10-2 =8

10*2=20 2*2=4

20+4=24

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