5*3 = 15 square metres.
factor the 18. 18=2x3x3. Take out the 3 because it is squared. 5x3 radical 2=15radical2
None. 5x3 is a pure number, not a length.
15
5x3 - 3x2 + 2x = x*(5x2 - 3x + 2) The quadratic has no real factors.
5*3 = 15 square metres.
factor the 18. 18=2x3x3. Take out the 3 because it is squared. 5x3 radical 2=15radical2
There are 6 sides to a rectangular prism. Two are 5x3, two are 3x2 and two are 2x5 - that means two are 15mm squared, two are 6mm squared, and two are 10mm squared. Add those up, and you get 62mm squared.
None. 5x3 is a pure number, not a length.
What is the additive inverse of the polynomial –9xy2 + 6x2y – 5x3?
15
15
An expression. It can be factored out slightly too: 2x6 + 5x3 - 7x4 = x3(2x3 - 7x + 5)
5x3 - 3x2 + 2x = x*(5x2 - 3x + 2) The quadratic has no real factors.
30
5.3
The answer is 21