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13 votes
PLEASE HELPPPPPPPP....?.......

If a+b=15 and ab=54 then find
1)

{a}^(2) + {b}^(2)
2)

(a - b )^(2)
3)

a ^(2) - {b}^(2)


User Zach Green
by
8.2k points

2 Answers

9 votes

Answer:

1) 117

2) 9

3) 45 or -45

Explanation:

a=9

b=6

1) a²+b²=9²+6²=81+36=117

2) (a-b)²=(9-6)²=3²=9

3) a²-b²=81-36=45

It’s also possible that a=6 and b=9, in which case

1) (same)

2) (same)

3) 36-81=-45

User Lznt
by
7.4k points
11 votes

Answer:

a = 9

b = 6

I hope you can do the rest yoyrself, as I coulsnt find how to type it out ;-;

User IncrediblePony
by
7.9k points

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