Question

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(18a³+27a²):3a²




(15x³-10x²):(5x)

(12x²y-9xy²+15xy):(-3xy)

(x-2).(x-5)?

Answer 1

(18a3 + 27a2)/3a2 = 6a + 9 

(15x3 - 10x2)/5x = 3x2 - 2x 

(12x2y - 9xy2 + 15xy)/(-3xy) = -4x +3y - 5 

(x - 2)*(x - 5) = x2 - 7x + 10

Answer 2

$\frac{18 a^{3} }{3 a^{2} } + \frac{27 a^{2} }{3 a^{2} } = 6a + 9;$ $\frac{15x^{3} }{5x} - \frac{10x^{2} }{5x } = 3 x^{2} - 2x;$ $\frac{12x^{2}y }{-3xy} - \frac{9xy^{2} }{-3xy } + \frac{15xy}{-3xy} = -4x + 3y - 5;$ $( x - 2 ). ( x - 5 )= x^{2} - 5x - 2x + 10 = x^{2} - 7x + 10$