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Q: What is the correct evaluation of x2 plus x - 9 when x is equal to -4?

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It is a quadratic polynomial with integer coefficients..

0

There is no expansion for x2 + y2

X2 + 4xx(x + 4)=======

x2(x3 + 1) is the best you can do there.

Related questions

It equals x2 - 34

2x2 + x2 = 3x2

=3x * * * * * The correct answer is: x2 + 7x + 12 = (x + 3)(x + 4).

x2 + x2 = 2x2 2x^2

572 Because 2x11=22 and 13x2=26 and 22x26=572.

It is a quadratic polynomial with integer coefficients..

x2 + x2 + x2 = (1 + 1 + 1)x2 = 3x2

x+x=2x

x2+xx = 15 Which is the same as: x2+x2 =15 2x2 = 15 x2 = 7.5 x = the square root of 7.5

Assuming you wish to make this equation equal zero, for x2 + 16x + 55 = 0, x = -5.

x2 + x2 = 2x2

x2 + x2 = 48 2x2 = 48 x2 = 24 x = √24 x = 2√6

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