Question

(i) (7x +9y2) (3xy?)​

Answer 1

Answer:

(7x+9y2)(3xy)

=(7x+9y2)(3xy)

=(7x)(3xy)+(9y2)(3xy)

=21x2y+27xy3

=27xy3+21x2y

Answer 2

$\huge\mathfrak{\bf{\underline{\underline{Question \ :}}}}$

$\implies \mathtt{(7x + 9 {y}^{2})(3xy) }$

$\huge\mathfrak{\bf{\underline{\underline{Solution \ :}}}}$

$\longrightarrow \: \underline \mathsf{we \: have \: format \: of }: - \: \mathtt{(a + b)(c)}$

$\longrightarrow \mathsf{we \: have \: to \: solve \:this \: by \: \underline{distributive \:property} }$

$\implies \mathtt{ab+ ac}$

$\mathtt{likewise \: we \: have \: to \: solve \: this \: question}$

$\implies \: \mathtt{(7x \times 3xy) + (9 {y}^{2} \times 3xy) }$

$\implies \: \boxed{\blue{\mathtt{21 {x}^{2} y + 27 {y}^{3}x }}}$

$\huge{\dag} \: {\underline{\sf{\purple{\mathtt{ Answer}}}}}$$\longrightarrow \: \underline { \underline\mathtt {21 {x}^{2} y + 27 {y}^{3}x }}$