Solve for x to 3dp: x^2 + 6x + 2 = 0

We cannot factorise this so we shall use the quadratic formula instead.We need to substitute in the values for a, b, and c.ax2 + bx + c = 0x2 + 6x + 2 = 0a = 1, b=6, c=2Once substituted in, we get 2 values (remember we must do both the ± versions)Final Answers:x = -0.354 & x = -5.646 Both to 3dp

Answered by Rikesh S. Maths tutor

2717 Views

See similar Maths GCSE tutors

Related Maths GCSE answers

All answers ▸

Factorise x^2-x-12


work out 64^2/3


What is Pythagoras's theorem?


Solve the equation 4(3x-2)=2x-5


We're here to help

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