Question

Решить нужно 1)(x-5)²=50-10x 2)7x-4>3x-2

Answer 1

(x-5)²=50-10x 

х²-10х+25=50-10х 

х²=25    х₁=5   х₂=-5 


7x-4>3x-2 

7х-3х>-2+4 

4x>2    x>0.5    x∈(0.5;+∞)

Answer 2

1)
${x}^{2} - 10x + 25 = 50 - 10x$
${x}^{2} - 10x + 10x = 50 - 25$
${x}^{2} = 25$
$x = sqrt{25}$
х=5

2) 7х-3х>4-2
4х>2
х>1/2