Question

simplify the following expressions (✓5+✓4)(✓5-✓4)​

Answer 1

$\huge\mathcal{\fcolorbox{aqua}{azure}{\red{❖Solution~÷}}}$

$\large\orange{\sf{(√5~+~√4)~(√5~-~√4)}}$

$\large\blue{\sf{Using~identity~(a)²~-(b)²~=~(a+b)~(a-b)}}$

$\large\orange{\sf{(√5)²~-~(√4)²}}$

$\large\orange{\sf{5-4}}$

$\large\orange{\sf{1}}$

$\huge\fbox\purple{1~(Ans.)~}$