(7-a)(4-3a)=

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Solution for (7-a)(4-3a)= equation:


Simplifying
(7 + -1a)(4 + -3a) = 0

Multiply (7 + -1a) * (4 + -3a)
(7(4 + -3a) + -1a * (4 + -3a)) = 0
((4 * 7 + -3a * 7) + -1a * (4 + -3a)) = 0
((28 + -21a) + -1a * (4 + -3a)) = 0
(28 + -21a + (4 * -1a + -3a * -1a)) = 0
(28 + -21a + (-4a + 3a2)) = 0

Combine like terms: -21a + -4a = -25a
(28 + -25a + 3a2) = 0

Solving
28 + -25a + 3a2 = 0

Solving for variable 'a'.

Factor a trinomial.
(4 + -3a)(7 + -1a) = 0

Subproblem 1

Set the factor '(4 + -3a)' equal to zero and attempt to solve: Simplifying 4 + -3a = 0 Solving 4 + -3a = 0 Move all terms containing a to the left, all other terms to the right. Add '-4' to each side of the equation. 4 + -4 + -3a = 0 + -4 Combine like terms: 4 + -4 = 0 0 + -3a = 0 + -4 -3a = 0 + -4 Combine like terms: 0 + -4 = -4 -3a = -4 Divide each side by '-3'. a = 1.333333333 Simplifying a = 1.333333333

Subproblem 2

Set the factor '(7 + -1a)' equal to zero and attempt to solve: Simplifying 7 + -1a = 0 Solving 7 + -1a = 0 Move all terms containing a to the left, all other terms to the right. Add '-7' to each side of the equation. 7 + -7 + -1a = 0 + -7 Combine like terms: 7 + -7 = 0 0 + -1a = 0 + -7 -1a = 0 + -7 Combine like terms: 0 + -7 = -7 -1a = -7 Divide each side by '-1'. a = 7 Simplifying a = 7

Solution

a = {1.333333333, 7}

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