Complete the square to make a perfect square trinomial. Then, write the result as a binomial squared. n2+5/2n

Step-by-step explanation:

Given

Required

(a) Make a perfect square trinomial

(b) Write as binomial square

Solving (a)

Let the missing part of the expression be k;

This gives

To solve for k, we need to square half the coefficient of n;

i.e. Since the coefficient of n is , then

Hence;

=

Solving (b)

Expand

Factorize

Hence:

=

the amount you'd have after the work is $1.55

step-by-step explanation:

you subtract 95% from $31.

is means division by fractions

step-by-step explanation: