Question

x^2+5x-1800
solve using quadratic formula

Answer 1

a=1, b=5, c=1800
formula.
D=b^2_4ac
D=5^2_4×1×1800
D=25_4×1800
D=25_7200
D=_7175

Answer 2

x2+5x-1800=0

x2+45x-40x-1800=0

x(x+45)-40(x+45)=0

(x-40)(x+45)=0

then

x-40=0.


"X =40"________Ans


or


x+45= 0

"X = -45"________Ans


hope it will help you