Question

b) (x + 30)(x + 30) expand​

Answer 1

Answer:

Hope it will help you...

Answer 2

$(x + 30)(x + 30)$

$( {x + 3})^{2}$

${x}^{2} + ( {30})^{2} + 2 \times x \times 30$

$= {x}^{2} + 900 + 60x$

Here I have used this linear property.

$( {a +b })^{2} = {a}^{2} + {b}^{2} + 2ab$

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