Question

1. Evaluate 7m + 3mn; when m=8 and n=14?

2. Simplify: 675 ÷ (6+9 ÷ 3)

3. (3x - 2)(4x +1)

Answer 1

1. 392

2. 75

3.
`12x^(2) - 5x -2`

Explanation:

1. 7×8 + 3×8×14 = 56 + 336 = 392

2. 675 ÷ (6 + 3) = 675 ÷ 9 = 75

3.
`12`
`x^(2)` +
`3x -`
`8x - 2` =
`12x^(2) -5x-2`