It's useful to divide out the GCF first because it makes factoring easier as the coefficients are smaller requiring less steps.
Example where you don't factor GCF first...
4*-32 = -128
numerous factor pairs for 128 ... takes time to find the correct one
right factor pair is 16,-8
substitute for 8x
4x² + 16x - 8x - 32 = 0
group then factor
4x(x+4) - 8(x+4) = 0
group again
(4x-8)(x+4) = 0
Example of factoring GCF first
4x² + 8x - 32 = 0
4 is GCF
x² + 2x - 8 = 0
factor
(x+4)(x-2) = 0
Solving for x gives the same answer just less steps and simpler math when you factor GCF first.
Answer:
Se calcula el maximo comun divisor.
195/5 = 39
275/5 =55
315/5 =63
460/5= 92
525/5 =105
Se deben utilizar 354 garrafas
Step-by-step explanation:
Descomponemos cada número en factores primos.
Después, señalamos los factores comunes.
A continuación, en cada uno de los comunes, escogemos el factor con menor exponente.
Y por ultimo, multiplicamos los factores elegidos.
195 3 275 5 315 3 460 2 525 3
65 5 55 5 105 3 230 2 175 5
13 13 11 11 35 5 115 5 35 5
1 1 7 7 23 23 7 7
1 1 1
Given:
Let the cost of chocolate bar be 'x'.
Cost of chocolate bar is $0.55
Answer:
480
Step-by-step explanation:
:) no explanation just knawledge. ;)
No answer is possible.
Without the picture ... or a detailed explanation ...
it's not possible to tell what 'b' is.