What is the expression (x-3)(x^2-3x-10) as a polynomial in standard form?

1 answer:

5 0

A polynomial in standard form only means that you put it in order of descending x values. Multiplying out those 2 factors gives us $x^3-3x^2-10x-3x^2+9x+30$ . Combining like terms and we have $x^3-6x^2-x+30$ . That's in standard form.

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Evaluate 3x+4(y+3) when x is 5 less than the quotient of y and 3, and y=18.

romanna [79]

It is given that x is 5 less than the quotient of y and 3.

And given value of y is 18 .

So quotient of y and 3 is

$\frac{18}{3} = 6$