The dimensions of a square are altered so that one dimension is increased by 7 feet, while the other is decreased by 2 feet. The

Question

3 years ago

15

are of the resulting rectangle is 90ft^2. Find the original area of the square.

2 answers:

dangina [55] · Answer 1 · 2022-09-16T06:53:57+03:00

7 0

Answer:

64 ft^2

Step-by-step explanation:

(x+7)(x-2)=90

x^2-2x+7x-14=90

x^2+5x-104=0

factor

(x+13)(x-8)=0

x=-13

x=8 ft original square side

area=8x8=64

Sophie [7] · Answer 2 · 2022-09-16T09:07:22+03:00

Sophie [7]3 years ago

5 0

Answer:

64 ft^2

Step-by-step explanation: