given that X ²+ Y² = 43 and 4xy = to 48 find the value of (x + Y)²
Answers
Answered by
10
Answer:
(x+y)^2=x^2+y^2+2xy
=x^2+y^2+(4/2)xy
=x^2+y^2+(1/2)4xy
=43+1/2(48)
=43+24=76
Answered by
2
Answer:
67
Step-by-step explanation:
(x+y)²=x²+y²+2xy
=x²+y²+(1/2)4xy
=x^2+y^2+(1/2)4xy
=43+1/2(48)
=43+24=67
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