Answer:
A
Step-by-step explanation:
the area (A) of a rectangle is calculated as
A = length × width
= (2x + 10)(2x + 6) ← expand using FOIL and equate to 140
= 4x² + 12x + 20x + 60 = 140
= 4x² + 32x + 60 = 140 ( subtract 140 from both sides )
4x² + 32x - 80 = 0
I) 39.7 x 10000000
ii) 2.3 x 10^-7
Answer:
Step-by-step explanation:
um
Answer:
-14 is one
sorry i don't have anything eles