Evaluate the algebraic expression for the given variable values.

Cevap:When

p = -3

and

q = 4

, the value of the expression

2p^2 - 5q + 1

is 【-1】.

The value of the expression is -1.

Substituting

p = -3

and

q = 4

into

2p^2 - 5q + 1

yields

2(-3)^2 - 5(4) + 1 = 2(9) - 20 + 1 = 18 - 20 + 1 = -1

Substitute the given values

p = -3

and

q = 4

into the expression

2p^2 - 5q + 1

2(-3)^2 - 5(4) + 1

Replace each variable with its assigned value.

Evaluate the exponent

(-3)^2

2(9) - 5(4) + 1

Exponents must be evaluated before multiplication according to the order of operations.

Perform the multiplication operations.

18 - 20 + 1

2 \times 9 = 18

and

5 \times 4 = 20

Add and subtract from left to right.

-1

18 - 20 = -2

, and

-2 + 1 = -1

Evaluating Algebraic Expressions

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