Question

Leon evaluated the expression (–4a – 6) + a2 for a = 8. (-4(8) - 6) + 82 (-32-6) + 82 (-38) + 82 (-38) + 16 –19 + 16 –3 Analyze Leon's work. Check all that apply. Leon should have subtracted inside the parentheses before he multiplied. The expression inside the parentheses should be simplified to –26 instead of –38. Leon multiplied 8 by 2 when he should have raised 8 to a power of 2. The multiplication of two negative values in step 4 should result in a positive value. The correct answer should be 35.

Answer 1

Answer:

Option 3 is correct as  Leon multiplied 8 by 2 when he should have raised 8 to a power of 2.

Step-by-step explanation:

Given : Leon evaluated the expression $(-4a-6)+a^2$ for a=8

(-4(8) - 6) + 82 ,  (-32-6) + 82 , (-38) + 82 ,  (-38) + 16 –19 + 16 –3

Leon's work is not so proper , Option 3 is correct as  Leon multiplied 8 by 2 when he should have raised 8 to a power of 2.

Correct steps are :

Step 1 :    $(-4a-6)+a^2$

Step 2 : Put a=8 in the equation we get,

$=(-4(8)-6)+8^2$

$=(-32-6)+8^2$

$=-38+8^2$

$=-38+64$

$=26$  

Therefore, correct answer is 26.

Answer 2

Answer:

c,d,e

Step-by-step explanation: