Question

Pls tell me Q4, Q5& Q6

Answer 1

Step-by-step explanation:

The perimeter of the triangle is sum of all sides

Answer 2

Answer:

4) Perimeter of triangle=sum of all sides

=2x²-4x-5+3x²-9x-6+4x⁴-5x²+17x+7

=4x⁴+4x-4

5)x³+2x-5-3x^5+5x²-6x-3

=3x^5+x³+5x²-4x-8

6) According to the problem,

4x²+9x-5+(3x²-2x+7)

=7x²-7x+2

From the problem,

7x²-7x+2-(5x²-3x+2)

=7x²-7x+2-5x²+3x-2

=2x²-4x

Some of the important points:

•(-)×(-)= (+)

•(+)×(-)= (-)

•(+)×(+)= (+)