The expression 2(8a to the 2nd power + a - 1) + 3(a + 3) is equivalent to
a) 16a to the 2nd power + 5a + 7
b) 40a to the 2nd power + 10a + 10
c) 10a to the 2nd power + 5a + 7
d) 48a to the 2nd power + 12a + 12
please help!!!!!!!
calm down: first expand 2 (8a^2 + a -1), so we get 2*8a^2+2*a-2*1 = 16a^2+2a-2.
Then we expand the second expression 3 (a+3) to get 3*a+ 3*3 to get 3a+9. Then we add both expressions together to get 16a^2+2a-2 + 3a+9 =?
Post it.
4 children share 2 fruit bars equally,so how much will each get?
3 children share 5 chocolate bars equally,how much will each get?
To simplify the given expression, we will apply the distributive property and combine the like terms.
The expression is: 2(8a^2 + a - 1) + 3(a + 3)
First, distribute the 2 to each term inside the parentheses:
2 * 8a^2 + 2 * a + 2 * (-1)
Now, simplify the expression inside the parentheses:
16a^2 + 2a - 2 + 3(a + 3)
Next, distribute the 3 to each term inside the parentheses:
16a^2 + 2a - 2 + 3 * a + 3 * 3
Simplify further by combining the like terms:
16a^2 + 2a - 2 + 3a + 9
Finally, combine the like terms:
16a^2 + 5a + 7
Therefore, the given expression 2(8a^2 + a - 1) + 3(a + 3) is equivalent to 16a^2 + 5a + 7.
So, the correct answer is (a) 16a^2 + 5a + 7.