0=x2 +2x -2x + 5 + 2?

Answer 1

x=-3.5 if you want it in fraction it's 3and1/2 =P

Answer 2

+2x and -2X cancel and 5 and 2 combine so the equation is
x2 + 7=0 subratct 7 from both sides
x2=-7
if you haven't learned what imaginary numbers are the answer is no solution but if u have keep reading
x= square root of +or- 7 * the square root of -1.
simplify to + or - i square root of 7

Answer 3

x= -3.5 Add the like factors (x's) and numbers (5 +2= 7) so its 2x+7= 0. 0 - 7= -7. -7 divided by 2 = -3.5.

Answer 4

y = 2x² - 8x + 5 = 2(x² - 4x + 5/2) = 2*[(x - 2)² - 3/2] = 2(x - 2)² - 3 Vertex = (2, -3) Line of symmetery: x = 2

Answer 5

0=x2+2x-2x+5+2
0=x2+0+7
0=x2+7
-7=x2
x=root(7)i (not real)

Answer 6

REMEMBER FOR SOLVING ALL EQUATIONS WHAT YOU DO TO ONE SIDE YOUMUST DO TO THE OTHER

first combine like terms... so x^2+7

subtract 7 from both sides...so -7=x^2

take the square root of both sides... (square root of) -7=x

x is an imaginary number of +or- (square root of)7

Answer 7

if x2 is xpower 2, then the value of x is square root of - 7,

Otherwise, the previous answers given, x=-3.5 is good

Answer 8

0=x2+2x-2x+5+2
0=x2+7
-7+0=x2
x=0-7/2
x=0-3.5
answer will be..... x= -3.5........hope tat helps.......................! luck

Answer 9

x= i√7

or can be written as x=√-7

Answer 10

X=-3.5