Question

(4p + 5)(p + 1) = 0​

Answer 1

Answer:

$4p {}^{2} + 4p \: + 5p + 5$

$= )4p {}^{2} + 9p + 5$

$= )4p {}^{2} + (5 + 4)p \: + 5$

$= )4p {}^{2} + 4p \: + 5p \: + 5$

$= )4p(p \: + 1) + 5(p \: + 1)$

p = - 1 , -5/4

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Answer 2

Answer:

$4p {}^{2} + 4p \: + 5p \: + 5$

=)

$= 4p {}^{2} + 9p \: + 5$

$= 4p \: {}^{2} +( 4 + 5) \times p \: + 5$

$= 4p {}^{2} + 4p \: + 5p \: + 5$

$= 4p \times (p + 1) + 5 \times (p + 1)$

= (4p +5)×(p+1)

4p+5 =0

=)4p = -5

=)p = -5/4

p +1 =0

=) p = -1