Ayud. Don Miguel vende vacas en $7000 cada una. ¿Que expresión algebraica nos ayuda a calcular la venta?​

the mistake in the pattern is that :

b. the decimal point was moved one too many place values each time

the correct pattern could be made by :

b. moving the decimal point to the right the same numbers of place values as the exponents

225x²+4=0

225x²=0-4

225x²=-4

x²=-4/225

x=±√-4/225