lamar tried to evaluate an expression. here is his work: (12·4 + 6²) ÷ 2·7 step 1 = (12·4 + 36) ÷ 2·7 step 2…

lamar tried to evaluate an expression. here is his work: (12·4 + 6²) ÷ 2·7 step 1 = (12·4 + 36) ÷ 2·7 step 2 = (48 + 36) ÷ 2·7 step 3 = (48 + 36) ÷ 14 step 4 = 84 ÷ 14 step 5 = 6 is lamars work correct? no, lamar made a mistake going from step 1 to step 2. lamar should not

lamar tried to evaluate an expression. here is his work: (12·4 + 6²) ÷ 2·7 step 1 = (12·4 + 36) ÷ 2·7 step 2 = (48 + 36) ÷ 2·7 step 3 = (48 + 36) ÷ 14 step 4 = 84 ÷ 14 step 5 = 6 is lamars work correct? no, lamar made a mistake going from step 1 to step 2. lamar should not

Answer

Explanation:

Step1: Calculate exponent

$$(12\cdot4 + 6^{2})\div2\cdot7=(12\cdot4 + 36)\div2\cdot7$$

Step2: Calculate multiplication

$$=(48 + 36)\div2\cdot7$$

Step3: Calculate addition

$$=84\div2\cdot7$$

Step4: Calculate division and multiplication from left to right

$$=42\cdot7 = 294$$

Answer:

No, Lamar made a mistake going from Step 2 to Step 3. He should calculate (84\div2\cdot7) (division and multiplication from left - to - right) instead of (84\div(2\cdot7)). The correct result is (294).