1. (X +7) (x + 7)
2.( 3x + 1) (3x - 8)
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Answered by
1
Answer:
1. (x+7) (x+7)
=x^2+7x+7x+49
=x^2+14x+49
2.(3x+1) (3x-8)
=9x^2-24x+3x-8
=9x^2-21x-8
Answered by
0
1. ( x + 7 ) ( x + 7 )
( x + 7 )²
by using ( a + b )² = a² + 2ab + b²
( x² + 14x + 49 )
2. ( 3x + 1 ) ( 3x - 8 )
[ (3x)² + 3x(-8) + 3x -8 ]
[ 9x² -24x + 3x - 8 ]
9x² - 21x - 8
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