Question

2 x minus 3 equal to whole root of 2 x square - 2 X + 21​

Answer 1

Answer:

hey mate here is ur answer

2x-3=√2x^2-2x+21

4x2-9=2x2-2x+21

2x2+2x-30

x2+x-15

plzz mark as brainlist

Answer 2

Answer:

x = 2 or -3

Step-by-step explanation:

2x - 3 = √2x2 - 2x  + 21

squaring on both sides

4x2 + 9 = 2x2 - 2x  + 21

2x2 + 2x - 12

2x2 + 6x - 4x - 12

2x( x + 3) - 4(x + 3)

(2x - 4) ( x + 3)

therefore x =

2x = 4

x = 2

OR

x = -3