Mathematics: Ireally will appreciate anyone who does . try to show work/explain. a) if (5x−2)^2=ax^2−bx+c, what is the value of a+c^2? b)if (3x+5)2=ax2+bx+c, what is the value of a+b+c?

Ireally will appreciate anyone who does . try to

georgesarkes12

15.01.2022

For both problems, expand the left hand side and match up the coefficients.

a. (5x-2)^2=25x^2-20x+4=ax^2-bx+c

$\implies a=25,b=20,c=4$

$\implies a+c^2=25+4^2=41$

b. (3x+5)^2=9x^2+30x+25=ax^2+bx+c

$\implies a=9,b=30,c=25$

$\implies a+b+c=9+30+25=59$

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erinolson07cats

14.09.2020

6% of 3700 is 222 so Sarah will pay $222! Hope this helps tell me if this is wrong and I will correct it

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