3 years ago

What is the expression in factored form? x^2+13x+42

Mathematics

1 answer:

m_a_m_a [10]3 years ago

5 0

The answer is (x+6)(x+7)

Note that ( x − a ) ( x − b ) = x 2 − ( a + b ) x + ( a × b )

Also note that 13 = 6 + 7 and 42 = 6 × 7

So x 2 − 13 x + 42 = ( x − 6 ) ( x − 7 )

hope it helps

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