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Aleksandr [31]
4 years ago
12

Find values of a and b that make the following equality into identity:

Mathematics
1 answer:
joja [24]4 years ago
6 0

Answer:

a = -2/5 and b = 2/5.

Step-by-step explanation:

Multiply  each term by (x + 3)(x - 2) :

2 ≡  a(x - 2) + b(x + 3)

Let x = 2:

2 ≡ 0 + 2b + 3b

b = 2/5.

Let x = -3:

2 ≡  a(-3-2) + 0

a = -2/5

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the length of a rectangle is 3cm more than the width. find the length and the width if the perimeter of the rectangle is 98cm.
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