Question

Simpfily (2√5 + 3√7)^2 . Show your work. Justify each step. Need Help with Algebra I 9B Please!

Answer 1

Justin Bieber needs help with math? does he even have to do math?

Answer 2

anyways,
you have to use the binomial expansion
\[(2\sqrt{5}+3\sqrt{7})^2=(2\sqrt{5}+3\sqrt{7})((2\sqrt{5}+3\sqrt{7})\\
\quad=(2\sqrt{5})(2\sqrt{5})+(2\sqrt{5})(3\sqrt{7})+(3\sqrt{7})(2\sqrt{5})+(3\sqrt{7})(3\sqrt{7})\\
\quad=(4\times5)+(6\sqrt{35})+(6\sqrt{35})+(9\times7)\\
\quad=20+12\sqrt{35}+63\\
\quad=83+12\sqrt{35}
\]

Answer 3

(2√5 + 3√7)^2
\[(2\sqrt{5} )^{2}+(3\sqrt{7})^{2}+( 2\times2\sqrt{5}\times3\sqrt{7})\]
\[4*5 +3*7 + 12\sqrt{35}\]
\[20 +63+ 12\sqrt{35}\]
\[83 + 12\sqrt{35}\]

Answer 4

Disclaimer: the first post was for a quick laugh, guyz. So, laugh.

Answer 5

Lol:)

Answer 6

(2√5 + 3√7)^2=2^2*sqrt(5)^2+2*2 sqrt(5)*3^2*sqrt(7)+3^2*sqrt(7)^2=20+36*sqrt(35)+63=83+36*sqrt(35).
Elaborated that time!!!

Answer 7

Thank You Everyone i wish i could give everyone a medal...