Bu soruyu çözümü ile birlikte cevaplayabilir misiniz, acil?​

What statement is true? 2x^2-9x+2=-1

Which equation shows the quadratic formula used correctly to solve 5x2 + 3x -4 0 for x? cos -3+ v (3) 2-4() 2(5) 3+ |(3)² +4() 205) 3+ (3) 2-4() -3+ v (3)² +4()

Present age of man is 45 years, 5 years back his age was 4 times age of his son what is present age of his son?