Question

(c) (-1)x(-2)x(-3)x(-4)x(-5)​

Answer 1

Answer:

We know that the general form of quadratic equation is ax2+bx+c=0.

The given equation is (2x−1)(x−3)=(x+5)(x−1) can be simplified as follows: 

(2x−1)(x−3)=(x+5)(x−1)⇒2x(x−3)−1(x−3)=x(x−1)+5(x−1)⇒2x2−6x−x+3=x2−x+5x−5⇒2x2−7x+3=x2+4x−5⇒2x2−7x+3−x2−4x+5=0⇒x2−11x+8=0

Since the equation x2−11x+8=0 is of the form ax2+bx+c=0.

Hence, the equation (2x−1)(x−3)=(x+5)(x−1) is a quadratic equation.

Answer 2

Answer:

-120

Step-by-step explanation:

-1×-2×-3×-4×-5

2×-3×20

-6×20

-120