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January 1st, 2017, 02:01 PM   #1
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simultaneous equations

solve the following simultaneous equations using algebraic method

y = x2
y = x + 6
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January 1st, 2017, 02:06 PM   #2
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Quote:
Originally Posted by roberts46 View Post
solve the following simultaneous equations using algebraic method
y = x2
y = x + 6
I assume x2 means x^2 (x squared).

x^2 = x + 6
If you can't continue, you need classroom help.
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January 1st, 2017, 02:09 PM   #3
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Is it as basic as that?

Last edited by skipjack; January 1st, 2017 at 02:19 PM.
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January 1st, 2017, 02:20 PM   #4
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Yes. As 0 = x² - x - 6 = (x + 3)(x - 2), (x, y) = (-3, 3) or (2, 8).
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