Question

find cube of : 2a+3b plz ɴᴏ ꜱᴘᴀᴍᴍɪɴɢ ❎​

Answer 1

Step-by-step explanation:

(2a+3b)²

2a² +3b²

4a² +9b²

hope it will help you

Answer 2

$\huge{\underline{\underline{\mathtt{Solution}}}}$

$\sf{\red{(2a + 3b) {}^{3} }}$

$\sf{ =(2a) {}^{3} + {(3b)}^{3} + 3 \times 2a \times 3b(2a + 3b) }$

$\sf{ = 8 {a}^{3} + 27 {b}^{3} + 12ab(2a + 3b) }$

$\sf{ = 8 {a}^{3} + 27 {b}^{3} + 24 {a}^{2} b + 36ab {}^{2} }$

$\sf{\orange{ = 8 {a}^{3} + 24 {a}^{2} b + 36ab {}^{2} + 27 {b}^{3} }}$

Formula used:-

$\sf{\bold{(a + b) {}^{3}}} = {a}^{3} + {b}^{3} + 3ab(a + b)$