Question

Find the roots or solutions by factoring:

1. 2a (a + 3) = 0
2. 3z²-15z =0
3. x²+ 3x = 11x
4. 2x²-8 = 0
5. x²+x = 0
6. 2p² = 50​

Answer 1

Step-by-step explanation:

1. 2a^2 +6a=0

2a^2= -6 a

2a = -6

a= -3

2. 3z^2 = 15z

3z= 15

z=5

4.2x^2 = 8

x^2 = 4

x= root 4=2

5. x^2=-x

x= -1

6. 2p^2 =50

p^2 = 25

p =5

3. x^2 =11x - 3x =8x

x = 8