Question 927191: 1. One integer is 2 more than another. Their product is 35. Find the Integers
2. One integer is 5 less than 4 times another. Their product is 21. Find the integer
3. If 4 is added to the square of an integer the result is 5 less than 10 times that integer. Find the integer
Answer by TimothyLamb(4379)   (Show Source):
You can put this solution on YOUR website! please post each question separately
below is the answer to the first question:
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y = x + 2
xy = 35
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xy = 35
x(x + 2) = 35
xx + 2x - 35 = 0
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the above quadratic equation is in standard form, with a=1, b=2 and c=-35
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to solve the quadratic equation, by using the quadratic formula, copy and paste this:
1 2 -35
into this solver: https://sooeet.com/math/quadratic-equation-solver.php
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the quadratic has two real roots at:
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x = 5
x = -7
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answer:
using either root works for this problem:
x = 5
y = 7
OR
x = -7
y = -5
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