xsquare+x-12 factorise
Please tell step by step Please
Answers
Answered by
1
Step-by-step explanation:
x
2
+x−12canbefactorisedbysplittingtemiddleterm.
\begin{gathered} {x}^{2} + x - 12 \\ sum \: = 1. \\ product = - 12. \end{gathered}
x
2
+x−12
sum=1.
product=−12.
\begin{gathered} {x}^{2} + x - 12. \\ = {x}^{2} + 4x - 3x - 12. \\ = x(x + 4) - 3(x + 4). \\ = (x + 4)(x - 3).\end{gathered}
x
2
+x−12.
=x
2
+4x−3x−12.
=x(x+4)−3(x+4).
=(x+4)(x−3).
therefore \: (x + 4) \: and \: (x - 3) \: are \: the \: factors \: of \: {x}^{2} + x - 12.therefore(x+4)and(x−3)arethefactorsofx
2
+x−12.
Answered by
1
Answer:
x^2+x-12
x^2+4x-3x-12
x(x+4) -3(x+4)
(x-3) (x+4)
Similar questions