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15-08-2018
Mathematics

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2 r squared + 3s cubed minus r squared + 40 squared minus r squared if R equals -2 s equals -3 and T equals 5

2 r squared 3s cubed minus r squared 40 squared minus r squared if R equals 2 s equals 3 and T equals 5 class=

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20-08-2018

[tex] 2r^2+3s^2-r^2+4t^2-r^2\\\\\text{simplify}\\\\(2r^2-r^2-r^2)+3s^2+4t^2=3s^2+4t^2\\\\s=-3;\ t=5\\\\3(-3)^2+4(5)^2=3(9)+4(25)=27+100=127 [/tex]

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