(7-4y)(9-5y)=

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Solution for (7-4y)(9-5y)= equation: 


Simplifying
(7 + -4y)(9 + -5y) = 0

Multiply (7 + -4y) * (9 + -5y)
(7(9 + -5y) + -4y * (9 + -5y)) = 0
((9 * 7 + -5y * 7) + -4y * (9 + -5y)) = 0
((63 + -35y) + -4y * (9 + -5y)) = 0
(63 + -35y + (9 * -4y + -5y * -4y)) = 0
(63 + -35y + (-36y + 20y2)) = 0

Combine like terms: -35y + -36y = -71y
(63 + -71y + 20y2) = 0

Solving
63 + -71y + 20y2 = 0

Solving for variable 'y'.

Factor a trinomial.
(7 + -4y)(9 + -5y) = 0


Subproblem 1
Set the factor '(7 + -4y)' equal to zero and attempt to solve:

Simplifying
7 + -4y = 0

Solving
7 + -4y = 0

Move all terms containing y to the left, all other terms to the right.

Add '-7' to each side of the equation.
7 + -7 + -4y = 0 + -7

Combine like terms: 7 + -7 = 0
0 + -4y = 0 + -7
-4y = 0 + -7

Combine like terms: 0 + -7 = -7
-4y = -7

Divide each side by '-4'.
y = 1.75

Simplifying
y = 1.75

Subproblem 2
Set the factor '(9 + -5y)' equal to zero and attempt to solve:

Simplifying
9 + -5y = 0

Solving
9 + -5y = 0

Move all terms containing y to the left, all other terms to the right.

Add '-9' to each side of the equation.
9 + -9 + -5y = 0 + -9

Combine like terms: 9 + -9 = 0
0 + -5y = 0 + -9
-5y = 0 + -9

Combine like terms: 0 + -9 = -9
-5y = -9

Divide each side by '-5'.
y = 1.8

Simplifying
y = 1.8
Solution
y = {1.75, 1.8}

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