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factorise it into brackets. The equation is actually x2-6x+0. So into brackets it will be (x-6)(x+0) = 0. From here, to solve the equation, make either of the brackets = 0 by substituting a value for x. In this instance x = 0 or 6.
2nd [CATALOG], solve( , enter equation, variable and guess after the bracket, close brackets with " ) ". You can also put lower and upper bounds after the guess.
Follow PEMDAS (Parenthesis, Exponents, Multiplication, Division, Addition, Subtraction), but do what is in the brackets first.
Parentheses, also known as brackets, show that whatever lies within them must be solved before anything else, and must be treated as a single chunk of an equation. For example: 2*(4+3) tells you to solve the '4+3' part of this problem first, which gives 2*7. If the brackets weren't there, the equation would be 2*4+3, which equals 8+3, or 11.
It combines like terms and results in the least amount if variables to solve for