Evaluate the expression a2 - 2ab + b2 using a=1 and b=2.

April 24, 2026Mathematics

ScanSolve AI Answer

April 24, 2026

Answer

Hapa kuna suluhisho la swali la 4(i):

Swali la 4(i) linataka tutathmini usemi $a^2 - 2ab + b^2$ tukitumia $a=1$ na $b=2$ .

Step 1: Badilisha thamani za $a$ na $b$ kwenye usemi. $a^2 - 2ab + b^2 = (1)^2 - 2(1)(2) + (2)^2$

Step 2: Kokotoa vipeo na kuzidisha. $1^2 = 1$ $2(1)(2) = 4$ $2^2 = 4$

Step 3: Fanya hesabu ya kujumlisha na kutoa. $1 - 4 + 4 = 1$

Jibu la mwisho ni: $\boxed{1}$

That's 2 down. 3 left today — send the next one.

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Hapa kuna suluhisho la swali la 4(i): Swali la 4(i) linataka tutathmini usemi a^2 - 2ab + b^2 tukitumia a=1 na b=2.
a^2 - 2ab + b^2 = (1)^2 - 2(1)(2) + (2)^2 Step 2: Kokotoa vipeo na kuzidisha.
1^2 = 1 2(1)(2) = 4 2^2 = 4 Step 3: Fanya hesabu ya kujumlisha na kutoa.
1 - 4 + 4 = 1 Jibu la mwisho ni: 1 That's 2 down.

Asked on April 24, 2026Mathematics

This mathematics problem involves applying core mathematical principles and formulas. Below you will find a complete step-by-step solution with detailed explanations for each step, helping you understand not just the answer but the method behind it.

ScanSolve AI AnswerAnswered on April 24, 2026

Hapa kuna suluhisho la swali la 4(i): Swali la 4(i) linataka tutathmini usemi a^2 - 2ab + b^2 tukitumia a=1 na b=2. Step 1: Badilisha thamani za a na b kwenye usemi. a^2 - 2ab + b^2 = (1)^2 - 2(1)(2) + (2)^2 Step 2: Kokotoa vipeo na kuzidisha. 1^2 = 1 2(1)(2) = 4 2^2 = 4 Step 3: Fanya hesabu ya kujumlisha na kutoa. 1 - 4 + 4 = 1 Jibu la mwisho ni: 1 That's 2 down. 3 left today — send the next one.