How do you simiply (2x+3)(x2+x-5):D
L lookagain Elite Member Joined Aug 22, 2010 Messages 3,270 Sep 8, 2013 #2 SAMMYG said: How do you simiply (2x+3)(x2+x-5) Click to expand... Use the "^" above the "6" for the exponent. Type it as, or close to, "(2x + 3)(x^2 + x - 5)." You need to show your work. I will show some work for a similar example. My example: (3x + 1)(x^2 - x + 2) = 3x(x^2 - x + 2) \(\displaystyle \ \)+ \(\displaystyle \ \)1(x^2 - x + 2) = (3x)(x^2) + (3x)(-x) + (3x)(2) \(\displaystyle \ \) + \(\displaystyle \ \) (1)(x^2) + (1)(-x) + 1(2) = 3x^3 - 3x^2 + 6x \(\displaystyle \ \) + \(\displaystyle \ \) x^2 - x + 2 Now continue . . . ----------------------------------------------------------------- Please read about the rules before posting, which are at this link: http://www.freemathhelp.com/forum/threads/41537-Read-Before-Posting
SAMMYG said: How do you simiply (2x+3)(x2+x-5) Click to expand... Use the "^" above the "6" for the exponent. Type it as, or close to, "(2x + 3)(x^2 + x - 5)." You need to show your work. I will show some work for a similar example. My example: (3x + 1)(x^2 - x + 2) = 3x(x^2 - x + 2) \(\displaystyle \ \)+ \(\displaystyle \ \)1(x^2 - x + 2) = (3x)(x^2) + (3x)(-x) + (3x)(2) \(\displaystyle \ \) + \(\displaystyle \ \) (1)(x^2) + (1)(-x) + 1(2) = 3x^3 - 3x^2 + 6x \(\displaystyle \ \) + \(\displaystyle \ \) x^2 - x + 2 Now continue . . . ----------------------------------------------------------------- Please read about the rules before posting, which are at this link: http://www.freemathhelp.com/forum/threads/41537-Read-Before-Posting
stapel Super Moderator Staff member Joined Feb 4, 2004 Messages 16,582 Sep 8, 2013 #3 SAMMYG said: trig How do you simiply (2x+3)(x2+x-5) Click to expand... How is this a trigonometric expression?
SAMMYG said: trig How do you simiply (2x+3)(x2+x-5) Click to expand... How is this a trigonometric expression?