Math, asked by gahlotvikas4916, 5 months ago

Subtract
7x^4-5x^3+4x^2+3x-3x from 6x^4-4x^3-8x^2+7​

Answers

Answered by Anonymous
6

6 {x}^{4}  - 4 {x}^{3}  - 8 {x}^{2}  + 7 -  (7 {x}^{4}   \\ - 5 {x}^{3}  + 4 {x}^{2}  + 3x - 3x) \\  \\  = 6 {x}^{4}  - 4 {x}^{3 }  - 8 {x}^{2}  + 7 - 7 {x}^{4}   \\ + 5 {x}^{3}  - 4 {x}^{2}  - 3x + 3x \\  \\ =  6 {x}^{4}  - 7 {x}^{4}  - 4 {x}^{3}  + 5 {x}^{3}  - 8 {x}^{2}  -  \\ 4 {x}^{2}  + 3x - 3x + 7 \\  \\   = -  {x}^{4}  +  {x}^{3}  - 12 {x}^{2}  + 7

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