Question

x) (2a + 3b) (2a - b)​

Answer 1

Answer:

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Step-by-step explanation:

Subproblem 1

Set the factor '(2a + -3b)' equal to zero and attempt to solve:

Simplifying

2a + -3b = 0

Solving

2a + -3b = 0

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

Add '3b' to each side of the equation.

2a + -3b + 3b = 0 + 3b

Combine like terms: -3b + 3b = 0

2a + 0 = 0 + 3b

2a = 0 + 3b

Remove the zero:

2a = 3b

Divide each side by '2'.

a = 1.5b

Simplifying

a = 1.5b

Answer 2

Given, (2a+3b)(2a-3b)=0

Using the identity, (a+b) (a-b)=a^2-b^2

$(2a)^2 - (3b)^2$= $4a^2-9b^2$