Show that x^2 +6x+ 11 can be written as (x+p)^2 +q
x2 +6x +11this is a quadratic so we try to factorise it. x2 +6x can be turned into (x+3)2 -9 and we plus the 11 from the beginning so the final answer should look like (x+3)2 +2 and thus p=3 and q=2.
AM
Related Maths A Level answers
All answers ▸What is the quotient rule and how is it applied?
Use the substitution u = 2^x to find the exact value of ⌠(2^x)/(2^x +1)^2 dx between 1 and 0.
Differentiate with respect to x: y = xln[2x]
The quadratic equation 2x^2 + 8x + 1 = 0 has roots x1 and x2. Write down the value of x1+x2 and x1*x2 and find the value of x1^2 + x2^2