Answer:
(x+4)(x-3) or A
Step-by-step explanation:
I'm going to assume that you meant to write x² and not x2
which means we have
x²+x-12
and we need to factor this
to do this we need two numbers that add up to 1 (b) but mulitply to -12 (a*c)
our two numbers are
4, -3
Which means the answer is
(x+4)(x-3)
Just add all the numbers and then devide by how many numbers we have:
14+16+17+28+20=95
95÷5=19
Answer:
The width of the frame is equal to
Step-by-step explanation:
Let
x-------> the width of the frame picture
we know that

Simplify

The formula to solve a quadratic equation of the form
is equal to
in this problem we have

so
substitute in the formula
----> this solution is not logic
The width of the frame is equal to