If X = 2, Y = 5 and Z = 4, Find the Value of the Following:

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

`"x"/(2"x"^2)`

Sum

`"x"/(2"x"^2)=2/(2(2)^2)=2/(2xx4)=1/4`

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Concept of Substitution

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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 9.1

Find the value of 3a − 2b, when a = 8 and b = 10

Find the value of 3x³ – 4x² + 5x – 6, when x = − 1.

Evaluate:

(23 – 15) + 4

Simplify:

10m + (4n − 3n) − 5n

Simplify:

(15b − 6b) − (8b + 4b)

Simplify:

`3"x"+(2"x"-overline("x"+2))`

Simplify:

− (y − x) − (x + y − `overline(2"x"+"y")`)

Simplify:

3x − [5y − {6y + 2 (10y − x)}]

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

If x = a² – bc, y = b² – ca, and z = c² – ab; find the value of ax + by + cz

If X = 2, Y = 5 and Z = 4, Find the Value of the Following: "X"/(2"X"^2) - Mathematics