Algebraic expressions (Part 1)INTRODUCTION TO ALGEBRAEvaluate the following expression if a=3𝑎=3 and b=−1𝑏=−1, without using a calculator.ab2+4a𝑎𝑏2+4𝑎Answer: 2 attempts remaining
Question
Algebraic expressions (Part 1)INTRODUCTION TO ALGEBRAEvaluate the following expression if a=3𝑎=3 and b=−1𝑏=−1, without using a calculator.ab2+4a𝑎𝑏2+4𝑎Answer: 2 attempts remaining
Solution
To evaluate the expression ab^2 + 4a, we first substitute the given values of a and b into the expression.
So, a = 3 and b = -1.
Substituting these values, we get:
(3 * (-1)^2) + 4 * 3
Solving this, we get:
(3 * 1) + 12
Which simplifies to:
3 + 12 = 15
So, the value of the expression ab^2 + 4a when a = 3 and b = -1 is 15.
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