help
(-x^2+2x+4)(x+3)
\(-x^{3}-x^{2}+10x+12\)
how do you solve though
distribute 3 times
combine like terms
what
@oliver69
how do you multiply two polynomials
(−x^2+2x+4)(x+3) =(−x^2+2x+4)(x+3) =(−x^2)(x)+(−x2)(3)+(2x)(x)+(2x)(3)+(4)(x)+(4)(3) =−x^3−3x^2+2^x2+6x+4x+12 =−x^3−x^2+10x+12 When mulitplying polynomials First, multiply each term in one polynomial by each term in the other polynomial using the distributive law. Second add the powers of the same variables using the exponent rule. Then, simplify the resulting polynomial by adding or subtracting the like terms.
can u show me so u would multiply -x^2*x?
Re-order terms so constants are on the left to \(-x^{2}x\) Then combine exponents to \(-x^{3}\) and that's your answer \(-x^{3}\)
oh alright
how do you add polynomials
Here's an example to help you understand in a way:
why do you add the 3 and the 2
because they are like terms
so you combine like terms first? and then what
After we combine like terms we add their coefficients
alright and how do you factor polynomials
Factor out a GCF from each separate binomial. Then factor out the common binomial. Note that if we multiply our answer out, we do get the original polynomial. (that would be to check your work)
alright Imma try it thank you I just don't get my math
That's alright. i'm here if you need any more help
thank you can u give me an example of the factoring out a polynomial
You're welcome and there are three types... so he's an image
so for the one with 2 terms you would just multiply the one term by the other ones
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