Question

Verify @jdoe0001

Answer 1

(4sqrtb-7)^2

Answer 2

\(\bf (7-\sqrt{b})^2\implies (7-\sqrt{b})(7-\sqrt{b})\)

Answer 3

Now what?

Answer 4

wooops missing number there =(

Answer 5

\(\bf (7-4\sqrt{b})^2\implies (7-4\sqrt{b})(7-4\sqrt{b})\) you'd need to FOIL it

Answer 6

I got 65-56b

Answer 7

hmm is a binomial... so you'd end up with about 3 terms, or a trinomial

Answer 8

16b-56sqrtb+49

Answer 9

or 16b-7sqrtb

Answer 10

yeap \(\bf (7-4\sqrt{b})^2\implies (7-4\sqrt{b})(7-4\sqrt{b})
\\ \quad \\
49-28\sqrt{b}-28\sqrt{b}+(4\sqrt{b})^2\implies 49-56\sqrt{b}+16b\)

Answer 11

The one you typed or I typed first?

Answer 12

@jdoe0001

Answer 13

hmmm did you do the FOIL ?

Answer 14

yes

Answer 15

\(\bf (7-4\sqrt{b})^2\implies (7-4\sqrt{b})(7-4\sqrt{b})
\\ \quad \\
49-28\sqrt{b}-28\sqrt{b}+(4\sqrt{b})^2\implies \underline{49-56\sqrt{b}+16b}\)