Question

Solve the following subquestions (any 4)
1) (3x - 5] =1
2) Multiply V3(V7 - V3)
3) Divide by synthetic division (2m2-3m +10) = (m-5)
4) For the polynomial mx² -2x +3 if p(-1)=7.Find m?
5) Find factors of 2x²+x-1​

Answer 1

Step-by-step explanation:

1) 1 Add 55 to both sides.

3x=1+53x=1+5

2 Simplify 1+51+5 to 66.

3x=63x=6

3 Divide both sides by 33.

x=\frac{6}{3}x=

3

6

4 Simplify \frac{6}{3}

3

6

to 22.

x=2x=2

2) (√3+√7)(√3-√7)

=(√3)2 -(√7)2

=3-7

= 4

3)

Answer 2

Answer:

1 . 3x-5 =1

3x = 1+5

3x = 6

x = 6/3

x = 3

4. mx^2 - 2x + 3 = 7

p(-1) = m×(-1)^2 - 2×(-1) + 3 = 7

m×1 + 2 + 3 = 7

m + 2 + 4 =7

m + 6 = 7

m = 7 - 6

m = 1

5. 2x^2 + x - 1

2x^2 + 2x - x - 1 ( by middle term splitting)

( 2x^2 + 2x) - ( x + 1)

2x ( x + 1 ) - 1 ( x + 1 )

( x + 1 ) ( 2x -1 ) ( by using common method )

sorry , I don't know other answers