Find the zeroes of the quadratic polynomial x^2 + 8x + 15.

x2+8x+15 = (x+3)(x+5)So, the value of x2+8x+15 is zero when x2+8x+15 = 0 i.e. x = -3 or x = -5.

PS
Answered by Piyush S. Maths tutor

20785 Views

See similar Maths GCSE tutors

Related Maths GCSE answers

All answers ▸

Johnny take 4 hours 50 minutes to drive 213 miles to Manchester. He then takes the train to Liverpool. Liverpool is 37 miles from Manchester and the train travels at 90mph. Calculate Johnny's average speed for his total journey in mph.


Find the equation of the line in the form of y=mx+c given that two points on the line are (3,1) and (6,10)


Solve the simultaneous equations E.g. 2x + y = 18 and x − y = 6.


5 pencils cost 50p , how many would 2 pencils cost?


We're here to help

contact us iconContact ustelephone icon+44 (0) 203 773 6020
Facebook logoInstagram logoLinkedIn logo

© MyTutorWeb Ltd 2013–2025

Terms & Conditions|Privacy Policy
Cookie Preferences