For what x expression
equals zero?

Correct answer:

x =  -2

Step-by-step explanation:

4x2163x26x=4(x2)(x+2)3x(x2) x2x0 x=2

Did you find an error or inaccuracy? Feel free to write us. Thank you!


Tips to related online calculators
Looking for help with calculating roots of a quadratic equation?
Do you have a linear equation or system of equations and looking for its solution? Or do you have a quadratic equation?

You need to know the following knowledge to solve this word math problem:

Related math problems and questions:

  • Pure quadratic equation
    kvadrat Solve pure quadratic equation -5x2 +10 = 0.
  • EQ2
    eq2 Solve quadratic equation: 2x²- 2(x-7)²+5x=0
  • Exponential equation
    exp Determine the value of having y in the expression (3^y): (4^-1)=36. Unknown y is a natural number greater than zero.
  • Three friends
    money Three friends divided the profit 104,650 CZK, so that for every 4 CZK, which got the first friend equals 5 crowns for second and for every 9 CZK, which got the second equals 16 CZK for third. Question: Who got the most and how much.
  • A fraction
    fractions I think of a fraction, if we increase its numerator and denominator by one, the value of the fraction increases by one tenth, what fraction do I think?
  • Eq with reciprocal
    parabola2 Solve given equation with reciprocal member: a-6/a+10=4/8
  • The gardener
    stromy The gardener bought trees for 960 CZK. If every tree were cheaper by 12 CZK, he would have gotten four more trees for the same money. How many trees did he buy?
  • Unknown number x
    percents2 5% from an unknown number equals the number 26. What is the unknown number?
  • Over fraction
    fractions Solve equation: p over 5 equals fraction numerator 7 p over denominator 6 end fraction plus 5
  • Quadratic equation
    parabola Determine the numbers b, c that the numbers x1 = -1 and x2 = 3 were roots of quadratic equation: -3x 2 + b x + c = 0
  • Quadratic equation
    parabola Solve quadratic equation: 2x2+28x-550=0
  • Difference of two number
    squares2 The difference between the two numbers is 20. They are positive integers greater than zero. The first number raised to one-half equals the second number. Determine the two numbers.
  • Equation with fractions
    fractions What is the simplified form of the equation fraction 4 over 5 n minus fraction 1 over 5 equals fraction 2 over 5 n? n = -2 n = 4 n = fraction 1 over 2
  • Sinus
    sine_cosine Determine the smallest integer p for which the equation 4 sin x = p has no solution.
  • Semicircle
    semicircle To a semicircle with diameter 10 cm inscribe square. What is the length of square sides?
  • Radians compare
    28-trigonometry-02 What is greater angle? -0.7 radians or -0.7π radians?
  • Digit sum
    number_line The digit sum of the two-digit number is nine. When we turn figures and multiply by the original two-digit number, we get the number 2430. What is the original two-digit number?