Question

Evaluate 47² with algebric expressions​

Answer 1

Answer:

2209

Step-by-step explanation:

=>47=(50-3)²

using identity (a+b)²=a²+b²+-2ab

=>(50-3)²=50²+3²-2(50)(3)

=>2500+9-300

=>2209

HERE IS YOUR ANSWER IS 2209

Answer 2

$\huge{\frak{\green{Question}}}$

$\sf{\orange{Evaluate \ 47^2\ with \ algebraic\ expression.}}$

$\huge{\frak{\green{Answer}}}$

$\rightsquigarrow \tt{\red{2209}}$

$\huge{\frak{\green{Explanation }}}$

$\blue{\downarrow\pmb{\sf{u se \ the\ identity}}\downarrow}$

$\blue{( a+b )^2=a^2+b^2+2ab}$

$\blue{\sf { \rightsquigarrow47^2=(50-3)^2}}$

$\rightsquigarrow 50^2+3^2-2\times50\times3$

$\rightsquigarrow 2500+9-2\times150$

$\rightsquigarrow 2509-300$

$\red\sf{\rightsquigarrow 229}$