y = x^2 + 3x + 2 = 0
Factorising gives: y = (x+2)(x+1) = 0. y only equals 0 when (x+2)=0 or (x+1)=0. Therefore x=-2 or x=-1
DT
Related Maths 11 Plus answers
All answers ▸What is 21.7 × 9.4? A 287.68 E 412.96 B 532.42 C 117.24 D 203.98
How many thirds are there in 9?
Find the slope of the line perpendicular to the line y = (1/5)x - 2
Multiple choice. If the sequence is 9, 16, 25, 36, 49 choose the correct expression. A. n^2 B. (3n)^2 C. (n+2)^2