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Factor the quadratic function x2 + 13x + 42

Factor the quadratic function x2 + 13x + 42
asked 188k views
1 vote
Factor the quadratic function x2 + 13x + 42

asked
User Jose Alonso Monge
by
7.9k points

1 Answer

5 votes

Answer:


x = - 6 \: \: \: \: or \: \: \: \: \: x = - 7

Explanation:


{x}^(2) + 13x + 42 = 0\\ {x}^(2) + 6x + 7x + 42 = 0 \\ {x}(x + 6) + 7(x + 6) = 0 \\ (x + 6)(x + 7) = 0 \\ x + 6 = 0 \: \: \: \: \: or \: \: \: \: \: \: x + 7 = 0 \\ x = - 6 \: \: \: \: or \: \: \: \: \: x = - 7

answered
User Eric Hirst
by
8.1k points
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