Question

(3a+5)(3a-6)+30=?????​

Answer 1

(3а + 5)(3а - 6) + 30 =

= 9а² - 18а + 15а - 30 + 30 =

= 9а² - 3а =

= 3а*(3а - 1)

Answer 2

(3a+5)(3a-6)+30=

=3a(3a-6)+5(3a-6)+30=

=9a²-18a+15a-30+30=

=9a²-3a

будут вопросы задавайте!!!

Answer 3

To simplify the expression (3a+5)(3a-6)+30, we can use the distributive property to expand the product of the two binomials and then combine like terms. Let's go through the steps:

(3a+5)(3a-6) + 30

Expanding the product using the distributive property: = (3a)(3a) + (3a)(-6) + (5)(3a) + (5)(-6) + 30

Simplifying each term: = 9a^2 - 18a + 15a - 30 - 30

Combining like terms: = 9a^2 - 3a - 60

So, the simplified expression is 9a^2 - 3a - 60.