Question

100k3 – 75k2 + 120k – 90

Answer 1

`\boxed{\bold{270k-90}}`

Step By Step Explanation:

Multiply:
`\bold{100\cdot \:3=300}`

`\bold{300k-75\cdot \:2k+120k-90}`

Multiply:
`\bold{75\cdot \:2=150}`

`\bold{300k-150k+120k-90}`

Combine:
`\bold{300k-150k+120k=270k}`

`\bold{270k-90}`

- Mordancy