5(3)^2/2-3+2[5(7)-15/3]*4/12-6
When doing these you must always use the correct order of operation.
1) Brackets
2) Powers or exponents
3) multiply and divide - equally important - do them from left to right
4) addition and subtraction - equally important - do them from left to right
1) soportes de
2) poderes o exponentes
3) multiplicar y dividir - igualmente importante - hacerlas de izquierda a derecha
4) sumas y restas - igualmente importante - hacen de izquierda a derecha
=5*(3)^2/2-3+2*[5*(7)-15/3]*4/12-6
You must do the brackets first
Primero debes hacer los soportes
=5*(3)^2/2-3+2*[35-5]*4/12-6
=5*(3)^2/2-3+2*[30]*4/12-6
=5*(3)^2/2-3+2*30*4/12-6
Now the powers (or expontents)
Ahora las potencias (o expontents)
=5*(3)^2/2-3+2*30*4/12-6 3^2 means 3*3=9
=5*9/2-3+2*30*4/12-6
=5*9/2-3+2*30*4/12-6
Now the multiplies and divides going from left to right
Ahora la multiplica y divide va de izquierda a derecha
=5*9/2-3+2*30*4/12-6
=45/2-3+2*30*4/12-6
=22.5-3+2*30*4/12-6
=22.5-3+2*30*4/12-6
=22.5-3+20-6
Now the addition and subtraction
Ahora la suma y la resta
=33.5
5(3)^2/2-3+2[5(7)-15/3]*4/12-6 work inside the brackets, first
5(3)^2/ 2 - 3 + 2[35 - 5]*4/12 - 6 exponent, next
5(9)/2 - 3 + 2[30]*4/12 - 6 multiplications, divisions from left to right
45/2 - 3 + 60*4/12 - 6
22.5 - 3 + 240/12 - 6
22.5 - 3 + 20 - 6
19.5 + 20 - 6
39.5 - 6
33.5