Factor the following quadratic expressions.
1. x2 + 9x + 20
2. 3x2 + 27x + 60
3. 4x2 + 9x + 5
4. 3x2 − 2x − 5
5. −2x2 + 5x
6. −2x2 + 5x − 2
7. 5x2 + 19x − 4
8. 4x2 − 9
9. 4x2 − 12x + 9 [this one is tricky, but look for a special pattern.]
10. 3x2 − 13x + 12

u = -(6/7)w

step-by-step explanation:

place all values with 'u' on one side of the equation.

4u + 8w = - 3u + 2w

4u + 3u = 2w - 8w

further simplify the equation by solving the addition and subtraction.

7u = - 6w

make 'u' the independent variable by placing its co-efficient on the right-hand side.

u = - (6/7)w

i need more details

step-by-step explanation:

my name jeff

step-by-step explanation:

natural disasters at one point james charles' career

answer:

the answer is b) divide by -4 on each side and flip the sign.

step-by-step explanation:

we first need to start by dividing. this is because it is a multiplication problem to start.

we also need to make sure we flip the sign because any time you multiply or divide by negative numbers, the sign must be flipped.