Question

a2 +30a +225 (factories) ​

Answer 1

Answer:

${a}^{2} + 30a + 225 = {a}^{2} + 15a + 15a + 225 \\ a(a + 15) + 15(a + 15) = {(a + 15)}^{2}$

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Answer 2

Answer:

a^2 +30a +225

a^2 +15a+15a+225

a(a+15) +15 (a +15)

(a+15) (a+15) or (a+15)^2

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