Pertanyaan

Jika a 2 = 4 , maka a + b + c = ....

Jika $a^{2} = 4$ , maka a + b + c = ....

N. Ayu

Master Teacher

Mahasiswa/Alumni Universitas Negeri Padang

Jawaban terverifikasi

Pembahasan

Selanjutnya substitusi : Maka b = 3 dan c = 11 Sehingga a + b + c = 2 + 3 + 11 = 16

begin mathsize 14px style a squared equals 4 a equals √ 4 a equals 2 end style

Selanjutnya substitusi :

$begin mathsize 14px style square root of a open parentheses square root of b plus square root of c close parentheses equals square root of 6 plus square root of 22 square root of 2 open parentheses square root of b plus square root of c close parentheses equals square root of 6 plus square root of 22 open parentheses square root of b plus square root of c close parentheses equals fraction numerator open parentheses square root of 6 plus square root of 22 close parentheses over denominator square root of 2 end fraction open parentheses square root of b plus square root of c close parentheses equals fraction numerator square root of 6 over denominator square root of 2 end fraction plus fraction numerator square root of 22 over denominator square root of 2 end fraction open parentheses square root of b plus square root of c close parentheses equals square root of 3 plus square root of 11 end style$

Maka

b = 3 dan c = 11

Sehingga

a + b + c = 2 + 3 + 11 = 16