4x - 7 + 3 = 0
Combine like terms: 4x - 4 = 0
Add 4 to both sides: 4x = 4
Divide both sides by 4: x = 1
many solutions
8x2 + 16x + 8 = 0
-y + y equals 0.
3x^(2) + 24x = 0 Divide by '3' x^(2) + 8 = 0 x^(2) = - 8 x = sqrt(-8) Yjis is NOT resolved as you cannot take the squate root of a negative number, without going into IMAGINARY numbers. x = sqrt( -1 X 8) x = sqrt(-1) X sqrt(8) x= sqrt(-1) X 2sqrt(2) Sqrt(-1) is shown as 'i' ( small/lower case 'i' , algebraically). Hence x = 2sqrt(2) i
x2 plus 3x plus 3 is equals to 0 can be solved by getting the roots.
a2+30a+56=0 , solve for a Using the quadratic formula, you will find that: a=-2 , a=-28
y= -2x
-1 plus 1 = 0 plus 1 =1
X = 1.8
2x(3x+6) = 0 x = 0 or x = -2
c= -2 2/7 OR -2.285714
p is obviously zero because any number x plus 0 equals itself.