MATHS CLASS 8 CH - 9 ALGEBRAIC EXPRESSIONS A.. MENTAL MATHS

Expressions are formed from Variables and _____________

Expressions that contain one term or more than one term are called _________________

An identity is ______

(a+b)² = a² + _____ + b²

What is the square of 5xyz

• 25x²y²z²

• 5x²y²z²

Divide 20a⁶ by 4a³

• 5a⁶

• 5a³

• none

Find the value of 29*31

Simplify : (pq + 1/pq)² - (pq)²

• p²q² + 2

• (1/p²q²) + 2

• none

what is the value of if x= 1 and y = 1 (16x² + 9y² + 24xy) / (4x + 3y)

Find the value of (m²- n²) / (m + n) if m = 10 , n= 8

• 2

• 4

• 6

• none