Step-by-step explanation:
A = (5x²+11x-12)
5x²+11x-12 = 0
x²+11x-60
(x+15)(x-4) to maintain the balance divide the constant by 5.
(x+15/5)(x-4/5) = (x+3)(5x-4)
equate to zero and the value of x must be positive because there is no such thing as negative dimension.
SS¹: x+3=0
x = -3 ❎
SS²: 5x-4 = 0
x = 4/5✅
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Answers & Comments
Step-by-step explanation:
A = (5x²+11x-12)
5x²+11x-12 = 0
x²+11x-60
(x+15)(x-4) to maintain the balance divide the constant by 5.
(x+15/5)(x-4/5) = (x+3)(5x-4)
equate to zero and the value of x must be positive because there is no such thing as negative dimension.
SS¹: x+3=0
x = -3 ❎
SS²: 5x-4 = 0
x = 4/5✅