solve using identity <9p+4><9p-7>
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Answer:
(x+a)(x+b) using identity
x=9p
a=4
b=‐7
formula =xsquare+(a+b)x+ab
=9p square+(4+(‐7)9p+4×(‐7)
= 81p square‐27p‐28
it's an answer sorry for square mistake
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