Question

factorise 49y^2-100z^2
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Answer 1

$\huge{\bold{\mathfrak{Answer :–}}}$

$\mathtt{49y²-100z²}$

$\mathtt{(7y)²-(10z)²}$

$\mathtt{(7y+10z)(7y-10z)}$

$\huge{\bold{\mathfrak{Identity \; Used :–}}}$

$\mathtt{a²-b² = (a+b)(a-b)}$

$\mathtt{Here, \; a = 49y² \; \& \; b = 100z²}$