Sunday

March 29, 2015

March 29, 2015

Posted by **Delilah** on Monday, May 6, 2013 at 8:44pm.

3. (2x2 + 6x + 1) + (–7x2 + 2x – 3)

5x2 – 4x – 2

–5x2 + 8x – 2

5x2 – 8x + 2

–9x2 – 8x + 2

4. (3x2 – 7x – 4) – (6x2 – 6x + 1)

–3x2 – x –5

–3x2 –13x + 5

9x2 – x + 5

3x2 – 13x – 5

My answers:

3. 5x2 – 8x + 2

4. –3x2 – x –5

- Math help please check -
**Reiny**, Monday, May 6, 2013 at 10:02pm#4 is correct, but #3 is not

#3.

(2x2 + 6x + 1) + (–7x2 + 2x – 3)

= 2x^2 + 6x + 1 - 7x^2 + 2x - 3 , the brackets were not needed because a +1 was understood in front of them

= -5x^2 + 8x -2

**Answer this Question**

**Related Questions**

polynomials - (3+7x)-(16x2+15x2) (3+1x)-(12x+16+0+18x2) Q4: (15+13x2+14x2)+(13x...

Math help please ASAP - 2. Simplify the polynomial. –3f^2 + 4f – 3 + 8f^2 + 7f...

polynomials - (3+7x)-(16x2+15x2) (3+1x)-(12x+16+0+18x2) Q4: (15+13x2+14x2)+(13x...

Math: Check answers - 1. How can this product be simplified? 5x2(2x – 3) 5x2 + ...

math ~dont know all but check some~ pls help!!! - 1. Draw a model to represent ...

Algebra - I need help in finding the remainder when you divide 5x2 + 4x -40 by x...

Check a few more CALC questions, please? - I feel pretty good on my answers. Are...

math - (5x2 + 9) + (7x2 + -8) = _____?

Math - Which of the following are linear equations in x1, x2 and x3? (a) x1 + ...

intergrated math - Solve the equation for x. Write the solution set 3x2 + 5x2 – ...