Q: What is answer to polynomial x-squared minus x minus 42?

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It is the same as xsquared+9x+18 and when factored: (x+3)(x+6)

A 7th degree polynomial.

Depending on the missing operational sign, that would be 2(x plus or minus 8)

-9

A zero of a polynomial function - or of any function, for that matter - is a value of the independent variable (often called "x") for which the function evaluates to zero. In other words, a solution to the equation P(x) = 0. For example, if your polynomial is x2 - x, the corresponding equation is x2 - x = 0. Solutions to this equation - and thus, zeros to the polynomial - are x = 0, and x = 1.

Related questions

xsquared minus x minus 72

It is the same as xsquared+9x+18 and when factored: (x+3)(x+6)

Yes, it is a linear polynomial.

Yes.

xcubed-1 Answer::(X-1)(Xsquared+X+1) when you factor xcubed minus a number its the same thing as x cubed minus y cubed and x cubed minus y cubed factors to:: (x-y)(xsquared+xy+y squared) the first factor, (x-y), is the cubed root of the first and the cubed root of the second, so in the answer i have (x-1), which is x cubed minus one cubed :) the second factor, (xsquared+xy+ysquared), you take the first number squared, Xsquared, then the first and second one multiplied together, XY, and then the second number squared, Ysquared, so in the answer i have (xsquared+x+1), which is x squared, then x times 1 which is just x, and positive 1, which is negative 1 squared :) x^3 - 1

X2 - X - 2(X + 1)(X - 2)===============(X + 1) is a factor of the above polynomial.

(3x + 1)(x - 5)

(x + 1)(x - 1)

(x - 12)(x - 7)

2x^3 - 3x^2 + 4x - 3

x times x

42 - 30% = 42 x (1 - (30/100)) = 42 x 0.7 = 29.4