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sveta [45]
3 years ago
8

Write the equation in standard form x(2x+3)= x^2+1​

Mathematics
1 answer:
Natali5045456 [20]3 years ago
6 0

Answer:2x with and exponent of 3 -9x with and exponent of 2 +7x +6

Step-by-step explanation:

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I'll just factor the above equation.

x² + 18x + 80

x² ⇒ x * x
80
can be:
1 x 80
2 x 40
4 x 20
5 x 16
8 x 10  Correct pair

(x+8)(x+10)
x(x+10) +8(x+10) ⇒ x² + 10x + 8x + 80 = x² + 18x + 80

x+8 = 0
x = -8

x+10 = 0
x = -10

x = -8

(-8)² + 18(-8) + 80 = 0
64 - 144 + 80 = 0
144 - 144 = 0
0 = 0

(-10)² + 18(-10) + 80 = 0
100 - 180 + 80 = 0
180 - 180 = 0
0 = 0

I think the algebra tiles will not be a good tool to use to factor the quadratic equation because the equation is not a perfect square quadratic equation.
4 0
2 years ago
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What is the area of this parallelogram​
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Answer:

112 m^2

Step-by-step explanation:

A = b * h

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So

A = 14 x 8 = 112 m^2

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