Substituting into expressions

Front

What is substitution in mathematics?

Back

Substitution is the process of replacing a variable in an expression with a specific value to evaluate the expression.

Front

Evaluate the expression a + 2c when a = -2 and c = -4.

Back

-10

Front

What does the expression rs² + pq³ represent?

Back

It represents a mathematical expression where r and s are multiplied, s is squared, and p and q are multiplied with q cubed.

Front

Evaluate the expression 2(x³ - z²) when x = 2 and z = -1.

Back

18

Front

What is the result of h(2f + g) when h = -2, f = 2, and g = -4?

Back

0

Front

How do you simplify the expression (ef)/h - g?

Back

First, calculate ef, then divide by h, and finally subtract g.

Front

Evaluate the expression rs² + pq³ when p = 2, q = -3, r = 4, and s = -5.

Back

46

Front

What is the value of the expression 2(x³ - z²) when w = 5, x = 2, y = -8, and z = -1?

Back

18

Front

If e = 3, f = 2, g = -4, and h = -2, what is the value of h(2f + g)?

Back

0

Front

What is the value of (ef)/h - g when e = 3, f = 2, g = -4, and h = -2?

Back

1