6. Find value of 5x-4x2+3 at

a) x=0 b) x=-1 c) x=2

7. Divide 3x4-4x3-3x-1 by x-1.

8. Divide x3+1 by x+1.

9. Use suitable identities to find product

a) (x+4)(x+10)

b) (x+8)(x-10)

c) (3x+4) (3x-5)

d) (3-2x)(3+2x)

10. Evaluate the following product without multiplying directly:

a) 103×107

b) 95×96

c) 104×96

Question 6a, 3. 6b, -6, 6c, -3

Question 7, 3x^3-x^2-x-4-5/x-1

Question 8, x^2-x+1

Question 9a, x^2+14x=40

9b, x^2-2x-80

9c, 9x^2-3x-20

9d, 9-4x^2

10a 11021

10b 9120

10c, 9984

Step-by-step explanation:

93.8

step-by-step explanation:

lets say, first number = x

second number = 3x+7

total = 49

(x)+(3x+7)= 49

4x+7 = 49

4x = 42

x = 42/4

x= 10.5

x= 10.5

3x+7 = 3(10.5)+7 = 93.8

hope this