1.

Factorise p^2+9p+20 ​

Answer»

ANSWER:

(p+4)(p+5)

Step-by-step EXPLANATION:

p^{2} + 9p + 20 = p^{2} + 4p + 5p +20

= p(p+4) + 5(p+4)

= (p+4)(p+5)



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