Question

find the value of expression 4 X -3 x is equals to 2​

Answer 1

Answer:

Step-by-step explanation:

Answer 2

Find the values of x and y that make the expression 5 + 4x(x-y) - x equal to zero. Explain how you got your answer.

5 + 4x(x-y) - x = 0

expand the expression

5 + 4x^2 - 4xy - x = 0

rearrange the terms

4x^2 - 4xy - x + 5 = 0

this is a hyperbole

add 4xy to both sides of =

4xy = 4x^2 - x + 5

for x not = 0, divide both sides of = by 4x

y = ( 4x^2 - x + 5 ) / 4x

there are two solutions

x = 1, y = 2

x = 5, y = 5