Solve x^2 + 15x = - 50

  1. x2 + 15 x + 50 = 0 (rearrange by adding 50 to both sides)

  2. (x + 10)(x + 5) = 0 (factorise the quadratic equation)

  3. x + 10 = 0 or x + 5 = 0 (for the above to equal zero, at least one of the bracketed terms must equal zero)

  4. x = -10 or x = -5 (solving the two equations that result from step 3)

  5. The solution is x = -10, x = -5

Answered by Julia S. Maths tutor

6685 Views

See similar Maths GCSE tutors

Related Maths GCSE answers

All answers ▸

3 1/2 - 2 1/3


Solve the following equation: x^2 - 5x - 14 = 0


A bag contains 5 blue marbles and 5 red marbles. If marbles are NOT replaced after being selected from the bag, what is the probability (in percentage) of picking 2 red marbles? Give your answer to one decimal place.


expand and simplify x(3x-2)(x+1)


We're here to help

contact us iconContact usWhatsapp logoMessage us on Whatsapptelephone icon+44 (0) 203 773 6020
Facebook logoInstagram logoLinkedIn logo

© MyTutorWeb Ltd 2013–2024

Terms & Conditions|Privacy Policy
Cookie Preferences