Question

M^2*n^2-m*n^3= ? 7x^2y^3-21x^3y^3= ? m*(m+2)-4*(m+2)= ?

Answer 1

M^2*n^2-m*n^3=mn^2(m-n)
7x^2y^3-21x^3y^3=7x^2y^3(1-3x)
m*(m+2)-4*(m+2)=m^2+2m-4m+8=m^2-2m+8

Answer 2

1) =(mn)^2-mn^3=mn^2(m-n)
2) =7x^2y^3(1-3x)
3) =(m+2)(m-4)

Answer 3

Let's simplify the given expressions:

1. M^2n^2 - mn^3:

To simplify this expression, we can factor out common terms: M^2 * n^2 - m * n^3 = (M^2 - m) * n^2

2. 7x^2y^3 - 21x^3y^3:

To simplify this expression, we can factor out common terms: 7x^2y^3 - 21x^3y^3 = 7x^2y^3 * (1 - 3x) = 7x^2y^3 * (-3x + 1)

3. m * (m + 2) - 4 * (m + 2):

To simplify this expression, we can factor out common terms: m * (m + 2) - 4 * (m + 2) = (m - 4) * (m + 2)

Keep in mind that these expressions are simplified, and if you need further calculation or evaluation, you can substitute numerical values for the variables (M, n, x, y, m) to get specific results.