International System of Units is the primary system of used by most countries in the world; the modern metric system of measurement; abbreviated SI.

Which problem could be  solved  by evaluating the expression  7×(−3)7×-3?

When y’all answer can y’all explain too !

Me solve this problem, and someone clearly explain to me how to solve it.1.) use the value of the discriminant to determine if the given trinomials has 2 real solutions, 1 real solution, or no real solutions.a.  x2  − 4x  − 7 = 0b. 4r2  + 11r  − 3 = 0c. 3m2  + 7 = 0d.  t2  + 2t  + 1 = 0