Question

Expand 3x(11-7x). Help please

Answer 1

Answer:  The required expand form is $33x-21x^2.$

Step-by-step explanation:  We are given to expand the following expression :

$E=3x(11-7x)~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~(i)$

To expand the given expression, we must multiply 3x with each of the rems within the bracket.

The expansion of expression (i) is as follows :

$E\\\\=3x(11-7x)\\\\=3x\times11-3x\times7x\\\\=33x-21x^2.$

Thus, the required expand form is $33x-21x^2.$