What number should be added to both sides of the equation to complete the square? x2 – 10x = 7

25 should add

Step-by-step explanation:

Since, if we have a quadratic equation which is not a perfect square then for making a perfect square trinomial in the equation, we need to add the square of the half of the coefficient of x on both sides of the equation.

∵ Coefficient of x = 10

Half of 10 = 5

Square of 5 = 25

Thus, in equation

We need to add 25 on both sides,

i.e.

( ∵ ( a - b )² = a² - 2ab + b² )

72 is the answer to this problem

a

step-by-step explanation:

when a number is between two straight lines it means the absolute value.

to find absolute value you need to know how many numbers is that number away from 0.

when finding absolute value the number will always come out positive

so absolute value of -3 is 3

absolute value of 3/2 is 3/2

absolute value of -2 is 2

absolute value of 3.5 is 3.5

absolute value of -1 is 1

now put these numbers in order:

a)   |-1|, |3/2|, |-2|, |-3|, |3.5|