`4x^2-7x-2=0`

Which of the following equations has 2 as a root? (a) x^(2)-4x+5=0 , (b) x^(2)+3x-12=0 (c) 2x^(2)-7x+6=0 , (d) 3x^(2)-6x-2=0

Solve 4x^(2)-7x-2le0

Which of the following are quadratic equations? (i) x^2-6x+4=0 (ii) 2x^2-7x=0

Which of the following are quadratic equations? x^(2)-6x+4=0( ii) 2x^(2)-7x=0

If alpha and beta are the roots of the equation 2x^2-3x + 4=0 , then the equation whose roots are alpha^2 and beta^2, is a. 4x^(2)+7x+16=0 b. 4x^(2)+7x+6=0 c. 4x^(2)+7x+1=0 d. 4x^(2)-7x+16=0

If alpha and beta are the roots of the equation 2x^2-3x + 4=0 , then the equation whose roots are alpha^2 and beta^2, is a. 4x^(2)+7x+16=0 b. 4x^(2)+7x+6=0 c. 4x^(2)+7x+1=0 d. 4x^(2)-7x+16=0

Without solving, find the nature of the roots of the following equations: (i) 3x^(2)-7x+5=0 . (ii) 4x^(2)+4x+1=0 . (iii) 3x^(2)+7x+2=0 . (iv) x^(2)+px-q^(2)=0 .

If 2x^2-7x+5=0 , then what is the value of x^2+25/(4x^2) ? यदि 2x^2-7x+5=0 , तो x^2+25/(4x^2) का मान क्या होगा?

Discuss the nature of the following quadratic equations without finding the roots i) x^(2)-12x+32=0 ii) 2x^(2)-7x+10=0 iii) 4x^(2)-20x+25=0 iv) 3x^(2)+7x+2=0

Discuss the nature of the following quadratic equations without finding the roots i) x^(2)-12x+32=0 ii) 2x^(2)-7x+10=0 iii) 4x^(2)-20x+25=0 iv) 3x^(2)+7x+2=0