Correct expansion of [tex](3x-1)(4x^{2} +5)[/tex] is [tex]3x.4x^{2} +3x.5+(-1).4x^{2} +(-1).5[/tex].
What is multiplication?
A mathematical operation that at its simplest is an abbreviated process of adding an integer to zero a specified number of times and that is extended to other numbers in accordance with laws that are valid for integers.
Given
[tex](3x-1)(4x^{2} +5)[/tex]
= [tex]3x.4x^{2} +3x.5+(-1).4x^{2} +(-1).5[/tex]
Correct expansion of [tex](3x-1)(4x^{2} +5)[/tex] is [tex]3x.4x^{2} +3x.5+(-1).4x^{2} +(-1).5[/tex].
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