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The value of the expression x2 + 9 will depend on what value you plug in for x. If you are looking to factor that expression, it can only be done using complex numbers:
x2 + 9 = (x + 3i)(x - 3i)
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∙ 11y ago
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X2 plus 8x plus 9 equals -7?
x2+8x+9 = -7 x2+8x+9+7 = 0 x2+8x+16 = 0 (x+4)(x+4) = 0 Therefore: x = -4 and also x = -4 (they both have equal roots)
What is 2x squared plus x2 equal?
2x2 + x2 = 3x2
If x2 plus 6x equals 27 what is the value of x?
x2 +6x = 27 x2 + 6x - 27 = 0 x2 + 9x - 3x - 27 = 0 x(x + 9) - 3(x + 9) =0 (x - 3)(x + 9) = 0 So x can equal 3 or -9.
What is X squared plus x squared equal to?
x2 + x2 = 2x2 2x^2
What does x2 plus 11x plus 10 equals x2 plus 13x equal?
572 Because 2x11=22 and 13x2=26 and 22x26=572.
X2 plus 8x plus 9 equals -7?
x2+8x+9 = -7 x2+8x+9+7 = 0 x2+8x+16 = 0 (x+4)(x+4) = 0 Therefore: x = -4 and also x = -4 (they both have equal roots)
What is the correct evaluation of x2 plus x - 9 when x is equal to -4?
It is: (-4)^2 +(-4) -9 = 3 when x is equal to -4
Can you factor x2 plus 11x plus 18?
x2 + 11x + 18 (x + 9)(x + 2) CHECK: x2 + 9x + 2x + 18 x2 + 11x + 18 SET EACH EQUAL TO ZERO: x + 9 = 0 x = -9 x + 2 = 0 x = -2 NOW YOU ARE DONE: Solution set: {-9, -2}
What does x2 plus 6-40 equal?
It equals x2 - 34
What is 2x squared plus x2 equal?
2x2 + x2 = 3x2
If x2 plus 6x equals 27 what is the value of x?
x2 +6x = 27 x2 + 6x - 27 = 0 x2 + 9x - 3x - 27 = 0 x(x + 9) - 3(x + 9) =0 (x - 3)(x + 9) = 0 So x can equal 3 or -9.
What is the solution of x2 plus 24x plus 144 equals 9?
x2+24x+144 = 9 x2+24x+144-9 = 0 x2+24x+135 = 0 (x+9)(x+15) = 0 x = -9 or x = -15
How do you graph x2 plus y2 is less than or equal to 9?
It is the circular disc with centre at the origin and radius = 3 units.
What is the answer to x2 plus 9 equals 10x?
x2 + 9 = 10x x2 - 10x + 9 = 0. (x - 9)(x - 1) = 0. Therefore, x = 1 or 9.
What is X squared plus x squared equal to?
x2 + x2 = 2x2 2x^2
Factorization of x2 plus 12x plus 27?
x2 + 12x + 27 = (x + 9)(x + 3)
What does x2 plus 11x plus 10 equals x2 plus 13x equal?
572 Because 2x11=22 and 13x2=26 and 22x26=572.
