Question

1) m(m+n-4)2)5a²(a²-6a-3)​

Answer 1

Объяснение:

$1){m}^{2} + mn - 4m$

$2)5 {a}^{4} - 30{a}^{3} - 15 {a}^{2}$

Answer 2

Let's simplify these expressions step by step:

1. m(m + n - 4): To simplify this expression, you can use the distributive property (also known as the FOIL method when dealing with binomials):

m(m + n - 4) = m * m + m * (n - 4)

Now, multiply the terms inside the parentheses:

= m² + m(n - 4)

So, the simplified expression is m² + mn - 4m.

2. 5a²(a² - 6a - 3): To simplify this expression, again, use the distributive property:

5a²(a² - 6a - 3) = 5a² * a² - 5a² * 6a - 5a² * 3

Now, multiply the terms:

= 5a^4 - 30a^3 - 15a²

So, the simplified expression is 5a^4 - 30a^3 - 15a².