Question

Write the function y=3(x+b)^2-7 in standard form

Answer 1

\[3(x+b)^2-7=3(x+b)(a+b)-7=3(x^2+2xb+b^2)-7\]
\[=3x^2+6xb+3b^2-7\]

Answer 2

ty

Answer 3

Just expansion.

Answer 4

btw how did yu get the 2xb

Answer 5

Use the formula ( a + b) whole square. Here, (x + b) ^ 2= x^2 + b^2 + 2xb