Question

simplify: (4x+5y)^2​

Answer 1

(4x+5y)²

=(4x)²+(5y)²+2×4x×5y

=16x²+25y²+40xy

Answer 2

______________________________________

$\huge\sf\underline\red{Question}$

➢ (4x+5y)²

━━━━━━━━━━━━━━━━

$\huge\sf\underline\green{Answer}$

$\small\fbox\pink{formula=(a+b)²=a²+b²+2(ab)}$

━━━━━━━━━━━━━━━━

$\: \: \: \: \: \: \: \: \: (4x + 5y) {}^{2} \\ \\ \: \: \: \: \: \ \: (4x) {}^{2} + (5y) {}^{2} + 2(4x \times 5y)$

$\: \: \: \: \: \: \: \: \: \: \: \: 16x {}^{2} + 25y {}^{2} + 2(20xy) \\ \\ \: \: \: \: \: \: \: = 16x {}^{2} + 25 {y}^{2} + 40xy$

━━━━━━━━━━━━━━━━

______________________________________

$\small\purple{\textbf {\textsf {@akeertana503}}}$