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Popular >

simplify (7+i)(4+3i)

Solution

simplify

(7 + i) (4 + 3 i)

Solution

25 + 25 i

Solution steps

(7 + i) (4 + 3 i)

Apply complex arithmetic rule:

(a + bi) (c + d i) = (a c - b d) + (a d + b c) i

= (7 \cdot 4 - 1 \cdot 3) + (7 \cdot 3 + 1 \cdot 4) i

Simplify

(7 \cdot 4 - 1 \cdot 3) + (7 \cdot 3 + 1 \cdot 4) i : 25 + 25 i

= 25 + 25 i

Popular Examples

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100x^2-240x+143=0

100 x^{2} - 240 x + 143 = 0

factor 3x^3-2y^3-6x^2y^2+xy factor

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n + 1 - 3 n = - 5 + n + 1 - 2 n

factor 4p^2+7p+3 factor

4 p^{2} + 7 p + 3

Frequently Asked Questions (FAQ)

What is (7+i)(4+3i) ?
The solution to (7+i)(4+3i) is 25+25i