Please help me solve these two problems. My addition sign is not working on my keyboard.
a^4b plus a^2b^3
18z plus 45plus z^2
To solve the given problems without using the addition sign, we can rewrite the expressions using parentheses and substitution. Here's how you can do it:
1. Problem: a^4b + a^2b^3
In this expression, instead of using the addition sign, we can use parentheses to indicate the addition operation. Let's rewrite it:
a^4b + a^2b^3 = (a^4b) + (a^2b^3)
Now, let's substitute some values for the variables to simplify the expression. For example, let's assume a = 2 and b = 3:
(2^4 * 3) + (2^2 * 3^3)
Now, calculate the values within the parentheses:
(16 * 3) + (4 * 27)
Perform the multiplications:
48 + 108
Finally, simplify the expression:
48 + 108 = 156
Therefore, the simplified expression is 156.
2. Problem: 18z + 45 + z^2
Similar to the first problem, we will use parentheses to indicate the addition operation.
Let's rewrite the expression:
18z + 45 + z^2 = (18z) + 45 + (z^2)
Now, let's substitute a value for z. For example, let's assume z = 6:
(18 * 6) + 45 + (6^2)
Calculate the values within the parentheses:
108 + 45 + 36
Perform the addition:
153 + 36
Finally, simplify the expression:
153 + 36 = 189
Therefore, the simplified expression is 189.
Note: These solutions are obtained by using specific values for the variables. If you need a general solution that works for any values of the variables, the answer would be in terms of variables like a, b, or z.