Write each of the equations below in standard form (i. e. y = ax^2+bx+c y=ax 2 +bx+c): a. y = 3(x-7)(x+4) y=3(x−7)(x+4) b. y = 2(x-3)^2 + 5 y=2(x−3) 2 +5 c. y = -2(x+3)(x+5) y=−2(x+3)(x+5) d. y = -3(x-4)^2 + 8y=−3(x−4) 2 +8