SOLUTION: How do I solve this system of equations using substitution? {{{y=x^2-4x-1}}} {{{y=x+3}}}
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Question 646881: How do I solve this system of equations using substitution?
Answer by MathLover1(20849) (Show Source): You can put this solution on YOUR website!
............1
.................2
____________________________________
.................2...here you have on one side, substitute it in 1
............1...solve for
or .......use quadratic formula to find
solutions:
or
now find
.................2...if
.................2...if
your pairs of solutions are:
,
and
,
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