Find the value of a^2 + b^2 when a + b = 7 and ab = 12.
Answers
Answered by
3
Answer:
25
please mark this answer as brainliest.
Answered by
2
Answer:
25
Step-by-step explanation:
a+b=7
(a+b)^2=7^2 [squaring both the sides]
a^2 +b^2 + 2ab = 49
a^2 + b^2 +2×12=49
a^2+ b^2= 49-24
a^2+b^2= 25
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