Math, asked by saursang02, 11 months ago

2 x square - 5 x-7=0

Answers

Answered by anupama1568
0

Answer:

2 \times  \sqrt{ - 5}  \times  - 7 = 0 \\ 2 \times  \sqrt{5}  \times 7 = 0 \\  \sqrt{10}  \times 7 = 0 \\  \sqrt{70}  = 0  \\ or \\  \sqrt{70}

I hope it help you if it correct follow me and like the answer and mark me brainlest

Answered by Anonymous
1

Answer:

2x ^{2}  - 5x - 7 = 0 \\  \\  =  > 2x ^{2}  - (7 - 2)x - 7 = 0 \\  \\  =  > 2x ^{2}  - 7x + 2x - 7 = 0 \\  \\  =  > x(2x - 7) + 1(2x - 7) = 0 \\  \\  =  > (2x - 7)(x + 1) = 0 \\  \\ either \: 2x - 7 = 0 \\  \\ =   > 2x = 7 \\  \\  =  > x =  \frac{7}{2}  \\  \\ or \: x + 1 = 0 \\  \\  =  > x =  - 1

hope it helps uH

Similar questions