ALGEBRAIC SUBSTITUTION

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ALGEBRAIC SUBSTITUTION. Step 1 Write down the question. Step 2 Plug in the numbers. Step 3 Use BODMAS. Work down, Show all steps. Problem 1 . Given the formula P=K 2 W, find the value of P if K=5 and W=-3. Problem 2. If V=lwh, what is the value of V when l=2, w=3, and h=4 x ?. Problem 3.

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ALGEBRAIC SUBSTITUTION

Step 1 Write down the question

Step 2 Plug in the numbers

Step 3 Use BODMAS

Work down, Show all steps

Problem 1

Given the formula P=K2W, find the value of P if K=5 and W=-3.

Problem 2

If V=lwh, what is the value of V when l=2, w=3, and h=4x?

Problem 3

If x=1 and y=-2, which expression has a value of 3?

(1)x=y (2)x-y (3)xy (4)y-x

Problem 4

If a=1 and b=-2, find the value of (a+b)2.

Problem 5

Using the formula V=x 2h, find V when x=6 and h=2

Problem 6

Evaluate the expression (6a)2b if a=2 and b=-1

Problem 7

Find the value of 3a-4b if a=-2 and b=1.

Problem 8

Find the value of (x2-5x+4) if x=7.

Problem 9

Evaluate 5a2-b if a=-2 and b=3.

Problem 10

Find the value of the expression 3x3 when x=-2

Problem 11

What is the value of R2S if R=5 and S=-2.

Problem 12

Evaluate the expression 3x2 +y if x=1 and y=-3.

Problem 13

Find the value of the expression 2xy3 if x=3 and y=-2

Problem 14

Find the value of 5x2 if

x=-3.

Problem 15

If x=-3 and y=2, find the value of (xy)2.

Problem 16

Evaluate the expression x2+3y if x=-2 and y=-3.

Problem 17

If x=3 and y=-2, find the value of 4xy2.

Problem 18

Find the value of 3(ab)2 if a=2 and b=-1.

Problem 19

Find the value of 2x2y if x=3 and y=-1.

Problem 20

Find the value of a2-b if a=3 and b=-4.