0
x = -1/2 or -5
2x2 + 11x + 5 = 0
⇒ (2x + 1)(x + 5) = 0
⇒ (2x + 1) = 0 → x = -1/2
or (x + 5) = 0 → x = -5
Wiki User
∙ 11y ago
Add your answer:
Earn +20 pts
What is the solution for 17x2-11x plus 2 equals 2x2?
17x2-11x+2 = 2x2 Subtract 2x2 from both sides: 15x2-11x+2 = 0 Factorise: (3x-1)(5x-2) = 0 Solution: x =1/3 or x = 2/5
What Are the roots of x2 plus 11x plus 30 equals 0?
x2 + 11x + 30 = 0 (x + 5)(x + 6) = 0 so the roots are -5 and -6
What is the discriminant of 2x2 plus 5x plus 4 equals 0?
-7
Solve 2X plus 12 divided by X equals 11?
2x + 12/x = 11 (x ≠ 0, eliminate the denominator by multiplying each term of the both sides by x) 2x2 + 12 = 11x (subtract 11x to both sides) 2x2 - 11x + 12 = 0 (2x - 3)(x - 4) = 0 2x - 3 = 0 or x - 4 = 0 x = 3/2 or x = 4 Since x = 3/2 and x = 4 satisfy the equation, they are the solutions of the equation.
How do you factorise x3 plus 2x2-8x plus 5 equals 0?
x3 + 2x2 - 8x + 5 = 0 x(2x - 8) + 5 = 0
2x2 plus 15 equals 11x?
2x2 + 15 = 11x ? Can be only for some values of x.2x2 + 15 = 11x subtract 11x to both sides2x2 - 11x + 15 = 0(2x - 5)(x - 3) = 02x - 5 = 0 or x - 3 = 0x = 5/2 or x = 3
2x2 - 11x - 1 equals 0?
no false
What is the solution for 17x2-11x plus 2 equals 2x2?
17x2-11x+2 = 2x2 Subtract 2x2 from both sides: 15x2-11x+2 = 0 Factorise: (3x-1)(5x-2) = 0 Solution: x =1/3 or x = 2/5
What is 2x3 plus 11x equals 6x?
your equation is this... 2x3 + 11x = 6x 2x3 + 5x = 0 x(2x2 + 5) = 0 x = 0 and (5/2)i and -(5/2)i
What Are the roots of x2 plus 11x plus 30 equals 0?
x2 + 11x + 30 = 0 (x + 5)(x + 6) = 0 so the roots are -5 and -6
Maxz equals 2x1 plus 2x2 stc 5x1 plus 3x2 equals 8 x1 plus 2x2 equals 4 x1 x2 equals 0 and integerssolve by ipp?
3
What is the discriminant of 2x2 plus 5x plus 4 equals 0?
-7
Solve 2X plus 12 divided by X equals 11?
2x + 12/x = 11 (x ≠ 0, eliminate the denominator by multiplying each term of the both sides by x) 2x2 + 12 = 11x (subtract 11x to both sides) 2x2 - 11x + 12 = 0 (2x - 3)(x - 4) = 0 2x - 3 = 0 or x - 4 = 0 x = 3/2 or x = 4 Since x = 3/2 and x = 4 satisfy the equation, they are the solutions of the equation.
How do you factorise x3 plus 2x2-8x plus 5 equals 0?
x3 + 2x2 - 8x + 5 = 0 x(2x - 8) + 5 = 0
8-2x2 equals x plus 22-7 in ax2 plus bx plus c equals 0 form?
8 - 2x2 = x + 22 - 7Combine like terms on the right side:8 - 2x2 = x + 15Subtract 8 from each side:-2x2 = x + 7Add 2x2 to each side:0 = 2x2 + x + 7
What is x2 plus 7x equals - 2x2 plus 6 in the form ax2 bx c equals 0?
x2 + 7x = 2x2 + 6 x2 - 2x2 + 7x = 6 -x2 +7x - 6 = 0 or alternatively x2 - 7x + 6 = 0
What is the discriminant of 2x2 plus 23x plus 63 equals 0?
The discriminant is 25.
