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Mathematics 20 Online
OpenStudy (witz):

What is the expression in factored form? 3x2 + 11x - 20 h e l p

OpenStudy (lyss):

simplify --> (3)(2) = 6 6+11x+-20 combine like terms --> 11x+6+-20 11x+-14 --> 11x-14

OpenStudy (lyss):

unless that x wasn't a multiplication sign. could be exponential? in which case the factored form is (3x-4)(x+5)

OpenStudy (radar):

Since the coefficient of the X^2 is prime (3) you can be almost sure that it will look like this: (3x______)(x______) Since the 20 is negative, we know that there will be a + in one and a - in the other (3x +/- __) (x +/- ____)

OpenStudy (witz):

it's an exponent. thank you so much!

OpenStudy (radar):

Now it is simply the trial of 20 and 1, 4 and 5, 10 and 2)

OpenStudy (radar):

and as shown by lyss it is -4 and 5

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