John had $200 in his bank account. he made a purchase at the grocery store that was $1.50 more than he had in his account. select the point on the number line that represents the balance of his bank account after buying groceries.

Since I cannot draw here, (right?) I will tell you were to draw the point.

Exactly at - 1,5, which is exactly the second small dash when counting from the left.

Step-by-step explanation:

found it xd it ok yt

x^2 + 81

we can factor this using difference of square binomials.

rewrite the equation:

x^2 - (-81)

factor:

(a^2 - b^2) = (√a^2 + √b^2)(√a^2 - √b^2)

(x^2 - (-81) = (x + √-81)(x - √-81)

we can remove the - from under the radical by multiplying it by i.

(x^2 - (-81) = (x + i√81)(x - i√81)

(x^2 - (-81) = (x + 9i)(x - 9i)

we can check our answer by using foil:

x^2 - 9ix + 9ix - 81i^2

x^2 - 81^2

i^2 = -1

x^2 + 81