Chat with our AI personalities
The answer is x = 3i and x = -3i. {Where i= √(-1)}An expression in the form a2 - b2 can be factored into (a - b)(a + b), but you have a2 + b2 so this factors into (a - bi)(a + bi). Check by multiplying the binomials: a2 + abi - abi - (bi)2 the [abi]'s cancel, and i2 = -1, so you have a2 + abi - abi - -b2 which is a2 + b2, so it checks out. In this case, a is x and b is 3.
HESI A2 is an admissions assessment exam (hence the A2). It is often used by nursing schools as part of their admissions process.
A2 paper is 16.5 x 23.4 inches in size. You can get 4 sheets of A4 and 2 sheets of A3 into an A2 sized paper. You will get 8 sheets of A5 into an A2 sized paper.
5a+3a2a2= 8a a2
a2 - 4a + 4