Answer:
2P-Q+3R
[tex] = 2(2 {x}^{2} - 5x + 2) - (5 {x}^{2} + 6x - 3) + 3(3 {x}^{2} - x - 1)
[/tex]
[tex]4 {x}^{2} - 10x + 4 - 5 {x}^{2} - 6x + 3 + 9 {x}^{2} - 3x - 3[/tex]
[tex]4 {x}^{2} - 5 {x}^{2} + 9 {x}^{2} - 10x - 6x - 3x + 4 + 3 - 3[/tex]
[tex]8 {x}^{2} - 19x + 4[/tex]
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Verified answer
Answer:
2P-Q+3R
[tex] = 2(2 {x}^{2} - 5x + 2) - (5 {x}^{2} + 6x - 3) + 3(3 {x}^{2} - x - 1)
[/tex]
[tex]4 {x}^{2} - 10x + 4 - 5 {x}^{2} - 6x + 3 + 9 {x}^{2} - 3x - 3[/tex]
[tex]4 {x}^{2} - 5 {x}^{2} + 9 {x}^{2} - 10x - 6x - 3x + 4 + 3 - 3[/tex]
[tex]8 {x}^{2} - 19x + 4[/tex]