Question

(x+4)(x+5) give answer
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Answer 1

Step-by-step explanation:

identity =( x+a)(x+b)=x²+(a+b)x+ ab

(x+4)(x+5)= x²+(5+4)x+(5X4)

x²+9x+20 is your answer

Answer 2

Heya❤

$(x + 4)(x + 5) \\ = x {}^{2} + 5x + 4x + 20 \\ = </em></strong><strong><em>x {}^{2} + 9x + 20</em></strong><strong><em>.</em></strong><strong><em>.</em></strong><strong><em>.</em></strong><strong><em>.</em></strong><strong><em>.</em></strong><strong><em>.</em></strong><strong><em>.</em></strong><strong><em> </em></strong><strong><em>(</em></strong><strong><em>required</em></strong><strong><em> </em></strong><strong><em>\</em></strong><strong><em>:</em></strong><strong><em>equation</em></strong><strong><em>)</em></strong><strong><em> </em></strong><strong><em>\\ = x {}^{2} + 5x + 4x + 20 \\ = x(x + 5) + 4(x + 5) \\ = (x + 4)(x + 5) \\ \\ now.. \\ x + 4 = 0 \\ x = - 4 \\ \\ x + 5 = 0 \\ x = - 5$

Hope it helps you

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