1. Problem: Find the factors of $11x^2y$.
Factors are numbers or variables multiplied together to get the expression. Here, the factors are $11$, $x$, $x$, and $y$.
2. Problem: Write $5(d)(d)(d)(z)(z)$ using exponents.
Using exponent rules, repeated multiplication of the same base is written as powers. So, $5d^3z^2$.
3. Problem: What is $w^0$ equal to?
Any nonzero number raised to the zero power equals 1. So, $w^0 = 1$.
4. Problem: Write the product of "x and y" as an algebraic expression.
The product means multiplication, so the expression is $xy$.
5. Problem: Write "a increased by 12" as an algebraic expression.
This means $a + 12$.
6. Problem: Write "the difference of 7 and 9" as an algebraic expression.
Difference means subtraction, so $7 - 9$.
7. Problem: If $a=3$ and $b=-2$, evaluate $3a - 5ab + b^2$.
Step 1: Substitute values: $3(3) - 5(3)(-2) + (-2)^2$
Step 2: Calculate each term: $9 - 5(3)(-2) + 4$
Step 3: Calculate $-5(3)(-2) = -5 imes 3 imes -2 = 30$
Step 4: So expression is $9 + 30 + 4$
Step 5: Sum: $9 + 30 + 4 = 43$
8. Problem: If $m=-5$ and $w=4$, evaluate $mw - 4m - (3 + w)$.
Step 1: Substitute values: $(-5)(4) - 4(-5) - (3 + 4)$
Step 2: Calculate each term: $-20 + 20 - 7$
Step 3: Sum: $-20 + 20 - 7 = -7$
Final answers:
1. Factors: $11$, $x$, $x$, $y$
2. $5d^3z^2$
3. $1$
4. $xy$
5. $a + 12$
6. $7 - 9$
7. $43$
8. $-7$
Algebra Expressions 8E50Ac
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