Grade 12th PassAlgebra
If one root of ax2+bx+c=0 is 3-4i and a,b,c are real,a+b+c=
If one root of ax2+bx+c=0 is 3-4i and a,b,c are real,a+b+c=
1 Answer
lakshya pokharna
ax^2 + bx + c=0¥;₩ be the roots of equations now ¥=3-4iand ₩=3+4i ie conjugate of ¥so ¥+₩=6¥₩=25so new equation is x^2-(¥+₩)x+¥₩=x^2-6x+25so compare coeffecients of both equation a=1;b=-6;c=25so a+b+c=20
Other Related Questions on algebra
How do you write “the product of 18 and q” as an algebraic expression?
How do you write “the product of 18 and q” as an algebraic expression?
algebra
Last Activity: 2 Years ago