Question

factorise using middle term splitting
(a) -m^2-6m+91​

Answer 1

Answer:

-m^2-13m+7m+91

= -m(m+13)+7(m+13)

=(m+13)(-m+7)

m= -13,7

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Answer 2

Answer:

$- m {}^{2} - 6m + 91$

$= - m {}^{2} - (13 - 7)m + 91$

$= - m {}^{2} - 13m + 7m + 91$

$= - m(m + 13) + 7(m + 13)$

$(m + 13)(7 - m)$

Step-by-step explanation:

(m+13)(7-m) will be the solution.