Question

6) Qual a forma reduzida de cada um dos polinômios?

a) 10ab – ( a + 9 b- 6) + ( -4 ab + 3 – b) + ( +3 a + 3 ab – 10 )=

b) +5x2 –(-6xy+2x2 -4xy+y2 +5y2 )=

Answer 1

Resposta:

$10ab-\left(a+9b-6\right)+\left(-4ab+3-b\right)+\left(3a+3ab-10\right)\\\\10ab-\left(a+9b-6\right)-4ab+3-b+3a+3ab-10\\\\10ab-a-9b+6-4ab+3-b+3a+3ab-10\\\\9ab+2a-10b-1<<<<$

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$5x^2-\left(-6xy+2x^2-4xy+y^2+5y^2\right)\\\\5x^2-\left(2x^2-10xy+6y^2\right)\\\\5x^2-6y^2+10xy-2x^2\\\\3x^2+10xy-6y^2<<<$