Answer:
Hence the expression 
Step-by-step explanation:
Explanation
- The given expression is (a + b)(2a+3 b).
- We have to multiply the given expression.
- Multiply the (a + b) by 3b, multiply the (a + b) by 2a then add like terms.

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Answer:
b=14
Step-by-step explanation:
have a nice day and stay safe:)
Why?
Because if you draw a line from A to D to make a triangle AED, then triangle all angle add up equal 180.
X = - 1/2
In other way is x = -0.2 , x = -5^-1