What is the value of 2a2b+5ab−42𝑎2𝑏+5𝑎𝑏-4 if a=-4𝑎=-4 and b=5𝑏=5?
Question
What is the value of 2a2b+5ab−42𝑎2𝑏+5𝑎𝑏-4 if a=-4𝑎=-4 and b=5𝑏=5?
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Solution
Sure, let's solve the equation step by step.
Given: a = -4 b = 5
The equation is 2a^2b + 5ab - 4
Step 1: Substitute the values of a and b into the equation
= 2(-4)^25 + 5(-4)5 - 4 = 2165 - 205 - 4 = 160 - 100 - 4 = 56
So, the value of the equation 2a^2b + 5ab - 4 when a = -4 and b = 5 is 56.
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