(a-5)(3a+4) = peslis jawap​

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(a-5)(3a+4) = peslis jawap​

Jawaban:

3a2 – 11a – 20

Penjelasan:

(a – 5) (3a+4)

3a2 + 4a – 15a – 20

3a2 – 11a – 20

Jawaban:

3 {a}^{2} - 11a - 20

3a kuadrat – 11a – 20

Penjelasan:

( a – 5 ) ( 3a + 4 ) =

a times 3a = 3 {a}^{2}

a x 4 = 4a

-5 x 3a = -15a

-5 x 4 = -20

4a – 15a = – 11a

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