Answer:
the answer is 3xy
Step-by-step explanation:
2x can be combined with -5x and x because they have the same variables, but 3xy has the variable xy so it cannot be combined with the others
Step-by-step explanation:
y=mx+b
6 -8
9 -7
The simplification of rational expression (x²+6x-7)/(x²+9x+14) gives
(x-1)/(x+2).
<h3>What is factorisation?</h3>
A polynomial or integer is simply resolved into components that, when multiplied together, produce the original or starting polynomial or integer.
- The factorization method allows us to simplify any algebraic and quadratic equation by representing the equations as that of the product or factors rather than by expanding the brackets.
- Any equation can have an integer, a variable, or the algebraic expression itself as a factor.
The given expression is -
= (x²+6x-7)/(x²+9x+14)
Factorising both numerator and denominator;
= {x+7x-x-7} / {x+7x+2x+14}
= {x(x+7)-(x+7)} / {x(x+7)+2(x+7)}
= {(x+7)(x-1)} / {(x+7)(x+2)}
Cancel the (x+7),
= (x-1)/(x+2)
Therefore, the simplification of the given equation is (x-1)/(x+2).
To know more about factorisation, here
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Answer:
264.6
Step-by-step explanation:
Simple Interest is calculated using the formula: I=P*r*t
P=the principal (amount you start with)
r=percentage of interest earned
t= time in years
