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Mathematics 14 Online
OpenStudy (kmullis6):

Help me work through this Algebra problem? I need help... /:

OpenStudy (kmullis6):

Evaluate the following expression using the values given: Find 2r^2 + 3s^3 - r^2 + 4t^2 - r^2 if r = -2, s = -3, and t = 5. a) -19 b) -37 c) 27 d) 19

OpenStudy (anonymous):

2(-2)^2+3(-3)^2-(-2)^2+4(5)^2-(-2)^2

OpenStudy (kmullis6):

@brendalopez I'm new to Algebra.. Can you help me understand this step by step?

OpenStudy (kmullis6):

Like how to work it out?

OpenStudy (anonymous):

you just put in the numbers for the letters...

OpenStudy (anonymous):

r is replaced with -2. s is replaced with -3, t is replaced with 5

OpenStudy (kmullis6):

No, I get that. Like how do I solve the problem?

OpenStudy (kmullis6):

@brendalopez

OpenStudy (anonymous):

you just type it all in into your calculator..

OpenStudy (anonymous):

2(-2)^2+3(-3)^2-(-2)^2+4(5)^2-(-2)^2 2(4)+3(9)-4+4(25)-4 8+27-4+100-4 127 e) none of the above

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