Question

Given the following perfect square trinomial, fill in the missing term.

x2 − 16x + ____

Answer 1

@xiphoidx

Answer 2

use the identity:-
(x - a)^2 = x^2 -2a + a^2

Answer 3

what's the answer? i don't really get this

Answer 4

compare the Right hand side to your trinomial

Answer 5

x^2-2*x*8+8^2-8^2
=(x-8)^2-8^2
ans

Answer 6

if we compare term by term we get
-2a = -16

so a^2 = ?

Answer 7

is that the answer?

Answer 8

find the value of a from the two equations

-2a = -16

so a = ?

now fit this value of a into a^2 and you have your answer

Answer 9

thanks

Answer 10

a = -8?

Answer 11

no...a=8
not -8

Answer 12

oh yeah I always get that mixed up thanks