Question

Factorise by splitting the middle term
 1) a 2 – 10 a + 25

  2) m 2 + 5m + 6 ​

Answer 1

Answer:

Step-by-step explanation:

for 1)

1 Rewrite it in the form {a}^{2}-2ab+{b}^{2}a  

2

−2ab+b  

2

, where a=aa=a and b=5b=5.

{a}^{2}-2(a)(5)+{5}^{2}

a  

2

−2(a)(5)+5  

2

 

2 Use Square of Difference: {(a-b)}^{2}={a}^{2}-2ab+{b}^{2}(a−b)  

2

=a  

2

−2ab+b  

2

.

{(a-5)}^{2}

(a−5)  

2 for 2)(m+2)(m+3)

 

Answer 2

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