Compare 7 x 103 and 2 x 103. a) 7 x 103 is 3.5 times larger than 2 x 103 b) 7 x 103 is twice as large as 2 x 103 c) 7 x 103 is 3 times larger than 2 x 103 d) 7 x 103 is 5 times larger than 2 x 103

answer: standard form is ax^2 + bx + c = 0

step-by-step explanation:

standard form is ax^2 + bx + c = 0

(2x + 1)(x - 2) = 0

distribute to get into standard form

2x^2 - 4x + x - 2 = 0

2x^2 - 3x - 2 = 0

a = 2, b= -3, c = -2

a is your answer