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Find the product of the following polynomials:

1. 3m^4 n(6m^3 n^2 )
2. 4xy^2 (3x-5y)
3. -2(3x^2-5xy+8y^2 )
4. (3x+7)(4x+1)


Sagot :

Answer:

1.) 18m^7n³

2.) 12x²y² - 20 xy³

3.) -6x² + 10xy - 16y²

4.) 12x² + 31x + 7