Question

пооомоогитеее срочнооо плииз !!!!!​

Answer 1

1) 2x² - 50 = 2(x² - 25) = 2(x - 5)(x + 5)

2) 97² - 74•97 + 37² = (97 - 37)² = 60² = 3600

3) (3x + 4)² - (3x - 1)(3x + 1) = 41

9x² + 24x + 16 - 9x² + 1 = 41

24x = 24

x = 1

4) (y - 2)(y + 3) - (y - 2)² > 25

(y - 2)(y + 3 - y + 2) > 25

y - 2 > 5

y > 7

5) x - y = 3

x² - y² = 183

(x - y)(x + y) = 183

x + y = 183/3 = 61

2x = 64 => x = 32

2y = 58 => y = 29