Question

150-2x[(3x15) (2x10)]

Answer 1

20

Explanation:

150−2

[(3)(15)+(2)(10)]

=150−2(45+(2)(10)]

=150−2(45+20)

=150−(2)(65)

=150−130

=20

Answer 2

I'm not familiar with the use of square brackets/parentheses

I'm assuming it wants (3x15) times (2x10) then that times'd by 2x.

150-2x(900)

150-1800x doesn't make sense however. Can you rephrase the question?