exponents class 8 cbse ncert

Write the following in expanded form. 
10³

• 10+10+10
• 10x10x10
• 3x10
• 1,000

(2x³y)⁶

• 2x¹⁸y⁶
• 64x¹⁸y⁶
• 64x³y⁶
• 2x³y⁶

Simplify (2⁴)(2⁵)

• 2²⁰
• 4⁹
• 4²⁰
• 2⁹

Simplify (6x⁷)²

• 12x¹⁴
• 36x¹⁴
• 6x¹⁴
• 6x⁹

Simplify (-7y²)(5y⁴)

• -35y⁶
• -2y⁶
• -35y⁸
• -2y⁸

• 1³
• 4³
• 1^1.6
• 4^1.6

4⁰

• 0
• 1
• 4
• -4

Simplify the following expression: 
xy^-7

• xy⁷
• x/y⁷
• x⁷/y
• x⁷y

(ab⁸c)(a^-17c¹⁰)

• a¹⁷b⁸c¹¹
• a¹⁶b⁸c¹¹
• (b⁸c¹¹)/(a¹⁶)
• a^-17b⁸c¹⁰

• 2a²b⁶
• 1/2a²b⁶
• b⁶/2a²
• 2b⁶/a²