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torisob [31]
3 years ago
15

Factoring Special Cases (400 - 36x^2)

Mathematics
1 answer:
const2013 [10]3 years ago
5 0
Factor out a GCF of 4, then you are left with perfect squares.
4(100-9x^2)
Factor what is left as a difference of perfect squares (the outside and inside terms from FOIL should cancel out which is why each parenthesis has a different sign
f(10+3x)(10-3x)
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Step-by-step explanation:

<u>25% of $60 is:</u>

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3 years ago
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3 years ago
Divide 1.20m in the ratio 2:3:4
viktelen [127]
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5 0
3 years ago
(-2x-1)^2=0 How to solve brackets, please help
malfutka [58]
Not quite sure what you mean by brackets, but you can get the solution to this equation in a few steps:

<span>(-2x - 1)</span>² <span>= 0  ... square root both sides to eliminate the squared binomial
</span>√(-2x - 1)² = √0  ... simplify; the square is canceled out and the root of 0 brings you back to 0
-2x - 1 = 0  ... solve like a two-step equation
-2x = 1
x = -1/2 is your x-value.
3 0
3 years ago
Read 2 more answers
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