Solve this problem -x squared -40x- 80 =0
4, -5
x^2 -x - 20 = 0(x + 4)(x - 5) = 0x + 4 = 0 or x - 5 = 0x = -4 or x = 5
x2 + 6x + 8 = 0 Solve for x.X = -2 or X = -4
x * x - 9 = 0 PEMDAS = Multiplication first. What multiplied it self equals nine? 3. So x = 3
factorise (x-5)(x+4)=0 Hence x= 5 or -4
x2 - x = 20 x2 - x - 20 = 0 (x - 5)(x + 4) = 0 x - 5 = 0 and x + 4 = 0 So, x = 5 ans x = -4
Solve this problem -x squared -40x- 80 =0
X squared - 3x - 10 = 0 (x-5) (x+2) = 0 x - 5 = 0 x + 2 = 0 X= 5 x = -2
If you mean: x squared+9x+14 = 0 then by using the quadratic equation formula x = -2 or x = -7
Factor. X^2 + 12X X(X + 12) = 0 X = 0 ------------- X + 12 = 0 X = - 12 --------------
4, -5
x^2 -x - 20 = 0(x + 4)(x - 5) = 0x + 4 = 0 or x - 5 = 0x = -4 or x = 5
x=9 squared
x2 + 6x + 8 = 0 Solve for x.X = -2 or X = -4
So u have the function x2-4=0 Now because 4 is a squared number, its square root is 2 (x+2)(x-2)=0
x2+16x-80 = 0 (x-4)(x+20) = 0 x = 4 or x = -20