Find two positive integers whose sum is 18
and whose product is greater than or equal to
45. How many parts of integers will satisfy
the conditions?
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Find two positive integers whose sum is 18
and whose product is greater than or equal to
45. How many parts of integers will satisfy
the conditions?
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Answer:
9 and 81
I think 2
Step-by-step explanation:
let the numbers be x and y
x+y=18
y=-x+18
P=x.y
=x.(-x+18)
=-x²+18x
=-[x²-18x]
P=-[x²-18x+9²-9²]
=-[(x-9)²-81
=-(x-9)²+81
x=9
y=-9+18=9