Question

a) 2x² = 10


b) 3x² = 12


c) 3x² = 15


d) 4x² = 16


e) 4x² = 32


f) 5x² = 25


g) 5x² = 35


h) 6x² = 60


i) 6x² = 54


j) 2x² = 26


k) 2x² = 32

Answer 1

a) 2x² = 10

x² = 10/2

x = √5

b) 3x² = 12

x² = 12/3

x = √4

x = 2

c) 3x² = 15

x² = 15/3

x = √5

d) 4x² = 16

x² = 16/4

x = √4

x = 2

e) 4x² = 32

x² = 32/4

x = √8

x = 2√2

f) 5x² = 25

x² = 25/5

x = √5

g) 5x² = 35

x² = 35/5

x = √7

h) 6x² = 60

x² = 60/6

x = √10

i) 6x² = 54

x² = 54/6

x = √9

x = 3

j) 2x² = 26

x² = 26/2

x = √13

k) 2x² = 32

x² = 32/2

x = √16

x = 4