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maths gr.ut4 pg142 eg31
plz explain in detail how the underlined expression came from the circled one.
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Step-by-step explanation:
BRAINLIEST
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ty009:
how a^3+b^3= (a^3-a^2 b)+(a^2 b-b^3) came???
plz. reply
i just added a^2b and - a^2b which together give 0, just in order to find the factor a - b. get it?
ya got it... but why suddenly you thought adding subtracting that ? is there any reason why book writers solved so?
or you suddenly took that expression
this is a common trick often used especially when factorizing
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Solutions is attached above......
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image not clear unreadable......
change the image
turn of flash then click in natural light of your room
really hard to read
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