Fill in the Blank, When: X = 3, Y = 6, Z = 18, a = 2, B = 8, C = 32 and D = 0. Y − X = ........... - Mathematics

Fill in the blank, when:
x = 3, y = 6, z = 18, a = 2, b = 8, c = 32 and d = 0.

y − x = ...........

Fill in the Blanks

y − x = 6 − 3 = 3

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Chapter 20: Substitution (Including Use of Brackets as Grouping Symbols) - Exercise 20 (A)

Chapter 20 Substitution (Including Use of Brackets as Grouping Symbols)
Exercise 20 (A) | Q 1.02

Fill in the blank, when:
x = 3, y = 6, z = 18, a = 2, b = 8, c = 32 and d = 0.

xy − bd = ..............

Show that the value of x³ – 8x² + 12x – 5 is zero, when x = 1.

If x = 2, y = 5 and z = 4, find the value of the following:

`(5"x"^4"y"^2"z"^2)/(2"x"^2)`

Simplify:

25y − (5x − 10y + 6x − 3y)

If x = 3, y = 2 and z = 1; find the value of y^x

If x = 3, y = 2 and z = 1; find the value of 2x – 3y + 4z + 5

If P = − 12x² – 10xy + 5y², Q = 7x² + 6xy + 2y², and R = 5x² + 2xy + 4y²; find P – Q + R

Simplify:

6 {3x – 8 (5x – 10)}

If x = − 3, find the value of 2x³ + 8x² – 15.

In the context of algebra, what is the primary definition of 'substitution'?