Question

Calcule a soma: 15x²+1/2x²-2x²=​

Answer 1

Explicação passo-a-passo:

$15x {}^{2} + \frac{1}{2} x {}^{2} - 2x {}^{2} = (15 + \frac{1}{2} - 2).x {}^{2} = mmc = 2$

$( \frac{30 + 1 - 4}{2} ).x {}^{2} = \frac{27}{2} .x {}^{2}$