can some one help me with my algebra i **** at math? - XP Math - Forums

 XP Math - Forums can some one help me with my algebra i **** at math?

 08-02-2007 #1 red Guest   Posts: n/a can some one help me with my algebra i **** at math? FOIL-5(3x - 7) -4x2(3x2 - x + 1)-y3(2x2y - 4xy2)3a3b2(-a3b - a2b2)(x - 4)(x + 8)(2x - 5)(x - 9)(3x + 4)2 **Hint: squaring a binomial means to multiply it by itself. You should multiply (3x + 4)(3x + 4).(5 + x)(3 - 2x)(2x - 3)(x2 + 5x - 3)(2x2 - 5x - 1)(x2 + x - 3)
 08-02-2007 #2 pookie_one Guest   Posts: n/a Are you expecting us to do all this homework for you? Maybe it is time to sit down for some extra tutoring with your teacher. It is the only way you will understand it. We can tell you the answers but at test time, you will still be lost. Good Luck to you!
 08-02-2007 #3 *smile* Guest   Posts: n/a 5(3x-7)you should multiply 5 with 3x and again with 7 putting the sign in between.it would be: 15x-35(x-4)(x+8)would be: x^2+8x-4x-32(2x-5)(x-9)would be: 2x^2-18x-5x+45(3x+4)2would be: 6x+8like that try out the rest...its easy
 08-02-2007 #4 Ash Guest   Posts: n/a F- firstO- outer I - innerL- lastTHat tells you what order to do them in the bracket.(x-4)(x+8)x2(thats a power 2 remember!)-4x+8x-32First multiply 'x' and 'x'then -4 and x ... a - and a + gives you a minusthen x and 8 and finally -4 and 8then you find like terms ie. in this case -4x and 8x then add them which give you 4xNOW your final answer is :x2+4x+32

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