Question

Multiply (x sqaure -3)(2x-7xcube+4)and write the degree of the product​

Answer 1

Step-by-step explanation:

(x^2-3)(2x-7x^3+4)

=2x^3-7x^5+4x^2-6x+21x+12

=(2x^3)-7x^5+(4x^2)+15x+12

degree is 5

Answer 2

Basic knowledge

• You should have the knowledge of basic mathematical calculations viz. Addition, Subtraction, Division and Multiplication

You should know Tables up to 20

• What will you learn
• Average Trick
• Cube Root Trick
• Cube Trick
• Division Trick
• Imperfect Square Root Trick
• Multiplication Trick
• Square Root Trick
• Square Trick