#1 Simplify (5x³)(4x)
[tex]solution : \\ (5 {x}^{2} )(4x) = 5(4)(x {}^{3} )(x) \\ = 20 {x}^{3} + 1 \\ = 20 {x}^{4} [/tex]
#2 Simplify (x³y²)(xy⁴)
[tex]solution : \\ ( {x}^{3} y {}^{2} )( {xy}^{4} ) = (x {}^{3} \: • \: x)( {y}^{2} • \: {y}^{4} ) \\ = {x}^{3} + {}^{1} y {}^{2} + {}^{4} \\ = x {}^{4} {y}^{6} [/tex]
#3 Simplify (3a²)(-5ab)(2b³)
[tex]solution : \\ (3 {a}^{2} )( - 5ab)(2b {}^{3} ) = (3)( - 5)(2)( {a}^{2} • \: a)(b \: • \: b {}^{3} ) \\ = - 30 {a}^{3} b {}^{4} [/tex]
