[" (1) "x^(2)-15x+54=0],[" (4) "5m^(2)=22m+15],[" (7) "sqrt(2)x^(2)+7x+5sqrt(2)=0]

(1) sqrt(2)x^(2)+7x+5sqrt(2)=0

Solve sqrt(2)x^(2)+7x+5sqrt(2)=0

7x^(2)+2sqrt(14)x+2=0

sqrt(2)cos^(2)7x-cos7x=0

Find the discriminant of each of the following equations: (i) 2x^(2)-7x+6=0" "(ii)" "3x^(2)-2x+8=0 (iii) 2x^(2)-5sqrt(2)x+4=0" "(iv)" "sqrt(3)x^(2)+2sqrt(2)x-2sqrt(3)=0 (v) (x-1)(2x-1)=0" "(vi)" "1-x=2x^(2)

(sqrt(2x^(2)+15x-17))/(10-x)>=0

Find the roots of sqrt2 x^(2) + 7x + 5 sqrt2 = 0

int_(0)^(1.5)[x^(2)]dx=2-sqrt(2)

(i) 7x^(2) + 16x - 15 = 0 (ii) 5y^(2)+ 8y - 21 = 0

Find the roots of the equation sqrt(2)x^(2)+7x+5sqrt(2)=0