Question

Me ajudem, é para amanhã!

Answer 1

Resposta:

Explicação passo a passo:

$A + B \\x^{4} +2x^{3} +3x^{2} +4x+1+2x^{4} +5x^{3} +2x^{2}+2x+3\\ 3x^{4} +7x^{3} +5x^{2} +6x+4$$B + C\\2x^{4} + 5x^{3} + 2x^{2} + 2x + 3 + 7x^{4} +6x^{3} -4x^{2} -9x - 8\\9x^{4} + 11x^{3} - 2x^{2} - 7x - 5$$A - C\\x^{4} + 2x^{3} +3x^{2} + 4x +1 - (7x^{4} + 6x^{3} -4x^{2} - 9x -8\\ x^{4} + 2x^{3} +3x^{2} + 4x +1 - 7x^{4} - 6x^{3} +4x^{2} + 9x +8\\-6x^{4} - 4x^{3} +7x^{2} + 13x +9$$C - A\\7x^{4} + 6x^{3} -4x^{2} - 9x -8 - (x^{4} + 2x^{3} +3x^{2} + 4x +1 )\\7x^{4} + 6x^{3} -4x^{2} - 9x -8 - x^{4} - 2x^{3} -3x^{2} - 4x -1 \\6x^{4} + 4x^{3} -7x^{2} - 13x -9$$C - B\\7x^{4} + 6x^{3} -4x^{2} - 9x -8 - (2x^{4} + 5x^{3} +2x^{2} + 2x +3)\\7x^{4} + 6x^{3} -4x^{2} - 9x -8 - 2x^{4} - 5x^{3} -2x^{2} - 2x -3)\\5x^{4} + x^{3} -6x^{2} - 11x -11$