Math Algebra
posted by Rosa .
Resolve(17x²+14x + 9) – (13x² +6x  12)
30xsquared+20x+21
I'll try to be helpful and show the work. This is the method I learned last quarter.
(17x"sq"+14x+9)
+ (13x"sq"+6x+12)
=
(30X"sq"+20x+21)
I used the vertical method but the step are the same either way.
Step 1: Remove parentheses
Step 2: Combine like terms
Step 3: Simplify
I hoped I helped. Polynomials can be rather simple if you know the short cuts.
oh, and if you use the vertical method, don't forget to change the signs. When subtracting a negative it becomes adding a positive.
could you help me with this problem? y=3(x+5)(x2)...the answer is supposed to be y=3xsquared+ 9x30...how did they get the 30
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