Question

(4a-5) (5a+6)write down the products for each of the following​

Answer 1

Answer:

20a^2-a-30

Step-by-step explanation:

(4a-5)(5a+6)

=20a^2+24a-25a-30

=20a^2-a-30

Answer 2

Step-by-step explanation:

(4a-5)(5a+6)

=4a(5a+6)-5(5a+6)

=[(4a*5a)+(6*4a)]-[(5a*5)+(-5*6)]

=[20a²+24a]-[25a+(-30)]

=(20a²+24a)-(25a-30)

=20a²+24a-25a+30

=20a²-a+30

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