What is the standard form of y=(\frac{7}{5}x-\frac{4}{7})^{2}+4?

Jackson David

Jackson David

Answered question

2022-02-02

What is the standard form of y=(75x47)2+4?

Answer & Explanation

ithangesf4

ithangesf4

Beginner2022-02-03Added 16 answers

Explanation:
Basically you just expand out the bracket.
Rule for squaring things: the first squared, plus the last squared, plus twice the product of the two. (like if you had (x+3)2 it'd be x2+32 + twice (3x)=x2+6x+9)
So, (75x47)2 will be (75x)2+(47)+2(75x47)
=4925x2+164985x
Now add the +4:
=4925x285x+4+1649=4925x285x+21249

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