Question

(2x-3) squre equal to 49 solve this quadratic equation yaar please​

Answer 1

Answer:

x= -5 or x= 2

Step-by-step explanation:

(2x+3)^2=49

(2x)^2+2(2x)(3)+(3)^2. [(a+b)^2=a^+2ab+b^2]

4x^2+12x+9=49

4x^2+12x-40=0

x^2+3x-10=0. [dividing the whole equation by 4]

x^2+5x-2x-10=0. [5*-2=-10. 5-2=3]

x(x+5)-2(x+5)=0

(x+5)(x-2)=0

x+5=0. or. x-2=0

x=-5. or. x=2

Answer 2

(2x-3)² = 49

2x-3 = 7

2x = 10

x= 5