Saturday

April 19, 2014

April 19, 2014

Posted by **kevin** on Monday, February 16, 2009 at 6:21pm.

multiply

(2y+5w+6)(5y+5w-4)

- algebra -
**Reiny**, Monday, February 16, 2009 at 6:38pmUse the same pattern as you use in FOIL

(2y+5w+6)(5y+5w-4)

= 2y(5y) + 2y(5w) + 2y(-4) + 5w(5y) + ...

= 10y^2 + 10wy - 8y ...

combine all like terms

- algebra -
**kevin**, Monday, February 16, 2009 at 7:19pmok I finished the problem. Is this right?

2y(5y)+ 2y(5w) + 2y(-4) + 5w(5y) + 5w(5w)+ 5w(-4) + 6(5y) + 6(5w) + 6(-4)

then I multiplied:

10y^2 + 10wy - 8y + 25wy + 25w^2 - 20w + 30y + 30w - 24

then I combined like terms:

10y^2 + 15wy + 25w^2 + 22y + 10w - 24

final answer:

10y^2 + 25w^2 + 15wy + 22y + 10w-24

- algebra -
**Reiny**, Monday, February 16, 2009 at 8:19pm15wy should have been 35wy

**Related Questions**

algebra - Did I do this problem right? (2y+5w+6)(5y+5w-4) 2y(5y)+ 2y(5w) + 2y(-4...

Algebra - Help! I think I am right, but not sure. Factor out greatest common ...

Algebra - Help! I think I am right, but not sure. Factor out greatest common ...

mat 117/algebra - 2/(5w+10 )- 3/(2w-4) please show me how to work this problem. ...

algebra - ((5w^2-16w+3)/(5w^2+24w-5))/((15w^2-8w+1)/(3w^2+14w-5))

Math help please - 1. (9m + 6) + (–5m – 6) 4m + 12 14m + 12 14m – 12 4m 2. (3r^2...

Algebra - I need to solve these equations : 1) 5w^2 - 5w = 0 2) 2x^2 + 15x = 0 3...

Math - Add. 3/w+4 + 4/5w would the answer be 7/4+5w?

intermidate alegebra - I need help with two problem please. 4m^+20m+25= over the...

Algebra - 2 divided by 5w+ 10, minus 3 divided by2w-4 2/(5w +10) - 3/(2w-4) ? ...