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-4n(5n+6)-5(3+3n)

-20n^2 - 39n - 15

Step-by-step explanation:

first, we remove the parenthesis (multiply everything out).

-20n^2 - 24n - 15 - 15n

then, we simply collect like terms.

-20n^2 - 39n - 15

-20n^2-39n-15

Step-by-step explanation:

Given: -4n(5n+6)-5(3+3n)

Use the distributive property: -20n^2-24n-15-15n

Combine like terms: -20n^2-39n-15

Your simplified expression is -20n^2-39n-15

e

step-by-step explanation:

an equation by definition has to have two or more variables (x and 2 in this case)

8+10

step-by-step explanation:

you multiply 4 by 2 and 5 by 2