Question

factorise X square + 13 x + 42



plzzz help gyzz​

Answer 1

Answer:

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Answer 2

Answer:

$x^{2} + 13x + 42 = 0$

Step-by-step explanation:

=

$x {}^{2} + 6x + 7x + 42 = 0$

taking x common

$x ( x + 6 ) + 7(x + 6) = 0$

therefore

$(x + 6)(x + 7) = 0$

if x+6=0

$x = - 6$

if x+7=0

$x = - 7$